402479100 has 108 divisors (see below), whose sum is σ = 1266245344. Its totient is φ = 106928640.

The previous prime is 402479089. The next prime is 402479113. The reversal of 402479100 is 1974204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 302637 + ... + 303963.

Almost surely, 2^402479100 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 402479100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633122672).

402479100 is an abundant number, since it is smaller than the sum of its proper divisors (863766244).

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

402479100 is a wasteful number, since it uses less digits than its factorization.

402479100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684 (or 1674 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 402479100 is about 20061.8817661754. The cubic root of 402479100 is about 738.3253462282.

The spelling of 402479100 in words is "four hundred two million, four hundred seventy-nine thousand, one hundred".