21710952 has 48 divisors (see below), whose sum is σ = 59042880. Its totient is φ = 7207200.

The previous prime is 21710951. The next prime is 21710957. The reversal of 21710952 is 25901712.

It is not an unprimeable number, because it can be changed into a prime (21710951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23377 + ... + 24287.

It is an arithmetic number, because the mean of its divisors is an integer number (1230060).

Almost surely, 2^21710952 is an apocalyptic number.

It is an amenable number.

21710952 is an abundant number, since it is smaller than the sum of its proper divisors (37331928).

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

21710952 is a wasteful number, since it uses less digits than its factorization.

21710952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 21710952 is about 4659.5012608647. The cubic root of 21710952 is about 278.9713617655.

The spelling of 21710952 in words is "twenty-one million, seven hundred ten thousand, nine hundred fifty-two".