213934456 has 8 divisors (see below), whose sum is σ = 401127120. Its totient is φ = 106967224.

The previous prime is 213934453. The next prime is 213934489. The reversal of 213934456 is 654439312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213934453) 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, 13370896 + ... + 13370911.

It is an arithmetic number, because the mean of its divisors is an integer number (50140890).

Almost surely, 2^213934456 is an apocalyptic number.

It is an amenable number.

213934456 is a deficient number, since it is larger than the sum of its proper divisors (187192664).

213934456 is a wasteful number, since it uses less digits than its factorization.

213934456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26741813 (or 26741809 counting only the distinct ones).

The product of its digits is 77760, while the sum is 37.

The square root of 213934456 is about 14626.4984189655. The cubic root of 213934456 is about 598.0813303103.

The spelling of 213934456 in words is "two hundred thirteen million, nine hundred thirty-four thousand, four hundred fifty-six".