3157632 has 48 divisors (see below), whose sum is σ = 9089730. Its totient is φ = 1052160.

The previous prime is 3157613. The next prime is 3157639. The reversal of 3157632 is 2367513.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2903616 + 254016 = 1704^2 + 504^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 3157596 and 3157605.

It is not an unprimeable number, because it can be changed into a prime (3157639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 219 + ... + 2522.

Almost surely, 2^3157632 is an apocalyptic number.

3157632 is a gapful number since it is divisible by the number (32) 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 3157632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4544865).

3157632 is an abundant number, since it is smaller than the sum of its proper divisors (5932098).

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

3157632 is a wasteful number, since it uses less digits than its factorization.

3157632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761 (or 2746 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 3157632 is about 1776.9727065996. The cubic root of 3157632 is about 146.7080140542.

The spelling of 3157632 in words is "three million, one hundred fifty-seven thousand, six hundred thirty-two".