213470444 has 24 divisors (see below), whose sum is σ = 408542400. Its totient is φ = 96792080.

The previous prime is 213470443. The next prime is 213470461. The reversal of 213470444 is 444074312.

It is not an unprimeable number, because it can be changed into a prime (213470443) 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, 12647 + ... + 24225.

It is an arithmetic number, because the mean of its divisors is an integer number (17022600).

Almost surely, 2^213470444 is an apocalyptic number.

It is an amenable number.

213470444 is a deficient number, since it is larger than the sum of its proper divisors (195071956).

213470444 is a wasteful number, since it uses less digits than its factorization.

213470444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12013 (or 12011 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 213470444 is about 14610.6277756981. The cubic root of 213470444 is about 597.6486155415.

The spelling of 213470444 in words is "two hundred thirteen million, four hundred seventy thousand, four hundred forty-four".