1881792 has 126 divisors (see below), whose sum is σ = 6148324. Its totient is φ = 570240.

The previous prime is 1881787. The next prime is 1881799. The reversal of 1881792 is 2971881.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a super-2 number, since 2×1881792² = 7082282262528, which contains 22 as substring.

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

Its product of digits (8064) is a multiple of the sum of its prime divisors (16).

It is not an unprimeable number, because it can be changed into a prime (1881799) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 171067 + ... + 171077.

2^1881792 is an apocalyptic number.

1881792 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 1881792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3074162).

1881792 is an abundant number, since it is smaller than the sum of its proper divisors (4266532).

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

1881792 is an equidigital number, since it uses as much as digits as its factorization.

1881792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49 (or 16 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The square root of 1881792 is about 1371.7842395946. The cubic root of 1881792 is about 123.4593177372.

It can be divided in two parts, 18 and 81792, that added together give a triangular number (81810 = T₄₀₄).

The spelling of 1881792 in words is "one million, eight hundred eighty-one thousand, seven hundred ninety-two".