213935442 has 32 divisors (see below), whose sum is σ = 493333632. Its totient is φ = 60582144.

The previous prime is 213935413. The next prime is 213935453. The reversal of 213935442 is 244539312.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 17793 + ... + 27284.

It is an arithmetic number, because the mean of its divisors is an integer number (15416676).

Almost surely, 2^213935442 is an apocalyptic number.

213935442 is an abundant number, since it is smaller than the sum of its proper divisors (279398190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213935442 is a wasteful number, since it uses less digits than its factorization.

213935442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45202.

The product of its digits is 25920, while the sum is 33.

The square root of 213935442 is about 14626.5321248750. The cubic root of 213935442 is about 598.0822491389.

The spelling of 213935442 in words is "two hundred thirteen million, nine hundred thirty-five thousand, four hundred forty-two".