402708032 has 56 divisors (see below), whose sum is σ = 826471296. Its totient is φ = 194574848.

The previous prime is 402707993. The next prime is 402708041. The reversal of 402708032 is 230807204.

It is a junction number, because it is equal to n+sod(n) for n = 402707992 and 402708010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248858 + ... + 250470.

It is an arithmetic number, because the mean of its divisors is an integer number (14758416).

Almost surely, 2^402708032 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 402708032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413235648).

402708032 is an abundant number, since it is smaller than the sum of its proper divisors (423763264).

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

402708032 is a wasteful number, since it uses less digits than its factorization.

402708032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 1745 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 402708032 is about 20067.5866012832. The cubic root of 402708032 is about 738.4653073348.

It can be divided in two parts, 40 and 2708032, that added together give a palindrome (2708072).

The spelling of 402708032 in words is "four hundred two million, seven hundred eight thousand, thirty-two".