213934520 has 16 divisors (see below), whose sum is σ = 481352760. Its totient is φ = 85573792.

The previous prime is 213934499. The next prime is 213934529. The reversal of 213934520 is 25439312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213934529) 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 in 3 ways as a sum of consecutive naturals, for example, 2674142 + ... + 2674221.

Almost surely, 2^213934520 is an apocalyptic number.

213934520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213934520 is an abundant number, since it is smaller than the sum of its proper divisors (267418240).

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

213934520 is a wasteful number, since it uses less digits than its factorization.

213934520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348374 (or 5348370 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 213934520 is about 14626.5006067754. The cubic root of 213934520 is about 598.0813899504.

The spelling of 213934520 in words is "two hundred thirteen million, nine hundred thirty-four thousand, five hundred twenty".