213949632 has 56 divisors (see below), whose sum is σ = 609626416. Its totient is φ = 65829888.

The previous prime is 213949627. The next prime is 213949649. The reversal of 213949632 is 236949312.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40363 + ... + 45354.

It is an arithmetic number, because the mean of its divisors is an integer number (10886186).

Almost surely, 2^213949632 is an apocalyptic number.

It is an amenable number.

213949632 is an abundant number, since it is smaller than the sum of its proper divisors (395676784).

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

213949632 is a wasteful number, since it uses less digits than its factorization.

213949632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85745 (or 85735 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 213949632 is about 14627.0171942197. The cubic root of 213949632 is about 598.0954721302.

The spelling of 213949632 in words is "two hundred thirteen million, nine hundred forty-nine thousand, six hundred thirty-two".