402402400 has 36 divisors (see below), whose sum is σ = 982366812. Its totient is φ = 160960640.

The previous prime is 402402383. The next prime is 402402401. The reversal of 402402400 is 4204204.

402402400 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402402401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250702 + ... + 252301.

It is an arithmetic number, because the mean of its divisors is an integer number (27287967).

Almost surely, 2^402402400 is an apocalyptic number.

402402400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402402400 is an abundant number, since it is smaller than the sum of its proper divisors (579964412).

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

402402400 is a wasteful number, since it uses less digits than its factorization.

402402400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503023 (or 503010 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 402402400 is about 20059.9700897085. The cubic root of 402402400 is about 738.2784426318.

Adding to 402402400 its reverse (4204204), we get a palindrome (406606604).

The spelling of 402402400 in words is "four hundred two million, four hundred two thousand, four hundred".