213661032 has 64 divisors (see below), whose sum is σ = 609094080. Its totient is φ = 61873152.

The previous prime is 213661031. The next prime is 213661079. The reversal of 213661032 is 230166312.

It is a happy number.

213661032 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 213660993 and 213661011.

It is not an unprimeable number, because it can be changed into a prime (213661031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14838 + ... + 25445.

It is an arithmetic number, because the mean of its divisors is an integer number (9517095).

Almost surely, 2^213661032 is an apocalyptic number.

It is an amenable number.

213661032 is an abundant number, since it is smaller than the sum of its proper divisors (395433048).

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

213661032 is a wasteful number, since it uses less digits than its factorization.

213661032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40322 (or 40318 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 213661032 is about 14617.1485591411. The cubic root of 213661032 is about 597.8264243453.

The spelling of 213661032 in words is "two hundred thirteen million, six hundred sixty-one thousand, thirty-two".