1863472 has 60 divisors (see below), whose sum is σ = 4263616. Its totient is φ = 783360.

The previous prime is 1863461. The next prime is 1863473. The reversal of 1863472 is 2743681.

It is a Harshad number since it is a multiple of its sum of digits (31).

Its product of digits (8064) is a multiple of the sum of its prime divisors (63).

It is not an unprimeable number, because it can be changed into a prime (1863473) 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 11 ways as a sum of consecutive naturals, for example, 60097 + ... + 60127.

2^1863472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1863472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2131808).

1863472 is an abundant number, since it is smaller than the sum of its proper divisors (2400144).

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

1863472 is a wasteful number, since it uses less digits than its factorization.

1863472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86 (or 63 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 1863472 is about 1365.0904731922. The cubic root of 1863472 is about 123.0573685279.

The spelling of 1863472 in words is "one million, eight hundred sixty-three thousand, four hundred seventy-two".