402155204 has 24 divisors (see below), whose sum is σ = 771065568. Its totient is φ = 182008640.

The previous prime is 402155203. The next prime is 402155227. The reversal of 402155204 is 402551204.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 402155204.

It is not an unprimeable number, because it can be changed into a prime (402155203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9362 + ... + 29865.

It is an arithmetic number, because the mean of its divisors is an integer number (32127732).

Almost surely, 2^402155204 is an apocalyptic number.

402155204 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402155204 is a deficient number, since it is larger than the sum of its proper divisors (368910364).

402155204 is a wasteful number, since it uses less digits than its factorization.

402155204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39475 (or 39473 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 402155204 is about 20053.8077182365. The cubic root of 402155204 is about 738.1272367241.

The spelling of 402155204 in words is "four hundred two million, one hundred fifty-five thousand, two hundred four".