213455404 has 6 divisors (see below), whose sum is σ = 373546964. Its totient is φ = 106727700.

The previous prime is 213455353. The next prime is 213455413. The reversal of 213455404 is 404554312.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26681922 + ... + 26681929.

Almost surely, 2^213455404 is an apocalyptic number.

It is an amenable number.

213455404 is a deficient number, since it is larger than the sum of its proper divisors (160091560).

213455404 is a wasteful number, since it uses less digits than its factorization.

213455404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53363855 (or 53363853 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 213455404 is about 14610.1130728000. The cubic root of 213455404 is about 597.6345794903.

The spelling of 213455404 in words is "two hundred thirteen million, four hundred fifty-five thousand, four hundred four".