1873872 has 180 divisors, whose sum is σ = 7079904. Its totient is φ = 449280.

The previous prime is 1873867. The next prime is 1873877. The reversal of 1873872 is 2783781.

It is an interprime number because it is at equal distance from previous prime (1873867) and next prime (1873877).

It is a super-2 number, since 2×1873872² = 7022792544768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1873877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 144138 + ... + 144150.

2^1873872 is an apocalyptic number.

1873872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1873872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3539952).

1873872 is an abundant number, since it is smaller than the sum of its proper divisors (5206032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1873872 is a wasteful number, since it uses less digits than its factorization.

1873872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58 (or 36 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 1873872 is about 1368.8944444332. The cubic root of 1873872 is about 123.2858708697.

Subtracting 1873872 from its reverse (2783781), we obtain a palindrome (909909).

The spelling of 1873872 in words is "one million, eight hundred seventy-three thousand, eight hundred seventy-two".