213057446 has 16 divisors (see below), whose sum is σ = 366245376. Its totient is φ = 91059336.

The previous prime is 213057421. The next prime is 213057473. The reversal of 213057446 is 644750312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15596 + ... + 25871.

It is an arithmetic number, because the mean of its divisors is an integer number (22890336).

Almost surely, 2^213057446 is an apocalyptic number.

213057446 is a deficient number, since it is larger than the sum of its proper divisors (153187930).

213057446 is a wasteful number, since it uses less digits than its factorization.

213057446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41843.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 213057446 is about 14596.4874541788. The cubic root of 213057446 is about 597.2629461759.

The spelling of 213057446 in words is "two hundred thirteen million, fifty-seven thousand, four hundred forty-six".