213990412 has 6 divisors (see below), whose sum is σ = 374483228. Its totient is φ = 106995204.

The previous prime is 213990409. The next prime is 213990419. The reversal of 213990412 is 214099312.

It is not an unprimeable number, because it can be changed into a prime (213990419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26748798 + ... + 26748805.

Almost surely, 2^213990412 is an apocalyptic number.

It is an amenable number.

213990412 is a deficient number, since it is larger than the sum of its proper divisors (160492816).

213990412 is a wasteful number, since it uses less digits than its factorization.

213990412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53497607 (or 53497605 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 213990412 is about 14628.4111235636. The cubic root of 213990412 is about 598.1334698334.

Subtracting 213990412 from its reverse (214099312), we obtain a square (108900 = 330²).

The spelling of 213990412 in words is "two hundred thirteen million, nine hundred ninety thousand, four hundred twelve".