213745402 has 32 divisors (see below), whose sum is σ = 368121600. Its totient is φ = 92259648.

The previous prime is 213745397. The next prime is 213745409. The reversal of 213745402 is 204547312.

It is a super-2 number, since 2×213745402² = 91374193752283208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213745409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36288 + ... + 41764.

It is an arithmetic number, because the mean of its divisors is an integer number (11503800).

Almost surely, 2^213745402 is an apocalyptic number.

213745402 is a deficient number, since it is larger than the sum of its proper divisors (154376198).

213745402 is a wasteful number, since it uses less digits than its factorization.

213745402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 213745402 is about 14620.0342680857. The cubic root of 213745402 is about 597.9051034527.

The spelling of 213745402 in words is "two hundred thirteen million, seven hundred forty-five thousand, four hundred two".