213456402 has 24 divisors (see below), whose sum is σ = 464206080. Its totient is φ = 70887960.

The previous prime is 213456401. The next prime is 213456413. The reversal of 213456402 is 204654312.

213456402 is a `hidden beast` number, since 2 + 13 + 4 + 5 + 640 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (213456401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17002 + ... + 26757.

It is an arithmetic number, because the mean of its divisors is an integer number (19341920).

Almost surely, 2^213456402 is an apocalyptic number.

213456402 is an abundant number, since it is smaller than the sum of its proper divisors (250749678).

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

213456402 is a wasteful number, since it uses less digits than its factorization.

213456402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44038 (or 44035 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 213456402 is about 14610.1472271843. The cubic root of 213456402 is about 597.6355108923.

The spelling of 213456402 in words is "two hundred thirteen million, four hundred fifty-six thousand, four hundred two".