213400239976 has 32 divisors (see below), whose sum is σ = 498857705280. Its totient is φ = 83142950400.

The previous prime is 213400239973. The next prime is 213400240013. The reversal of 213400239976 is 679932004312.

It is not an unprimeable number, because it can be changed into a prime (213400239971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173213865 + ... + 173215096.

It is an arithmetic number, because the mean of its divisors is an integer number (15589303290).

Almost surely, 2^213400239976 is an apocalyptic number.

It is an amenable number.

213400239976 is an abundant number, since it is smaller than the sum of its proper divisors (285457465304).

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

213400239976 is a wasteful number, since it uses less digits than its factorization.

213400239976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346428985 (or 346428981 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 213400239976 in words is "two hundred thirteen billion, four hundred million, two hundred thirty-nine thousand, nine hundred seventy-six".