213433902 has 48 divisors (see below), whose sum is σ = 505692720. Its totient is φ = 64521600.

The previous prime is 213433889. The next prime is 213433903. The reversal of 213433902 is 209334312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213433903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102124 + ... + 104192.

It is an arithmetic number, because the mean of its divisors is an integer number (10535265).

Almost surely, 2^213433902 is an apocalyptic number.

213433902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213433902 is an abundant number, since it is smaller than the sum of its proper divisors (292258818).

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

213433902 is a wasteful number, since it uses less digits than its factorization.

213433902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 213433902 is about 14609.3771941175. The cubic root of 213433902 is about 597.6145116447.

The spelling of 213433902 in words is "two hundred thirteen million, four hundred thirty-three thousand, nine hundred two".