21462700 has 36 divisors (see below), whose sum is σ = 53229232. Its totient is φ = 7358400.

The previous prime is 21462689. The next prime is 21462731. The reversal of 21462700 is 726412.

It is a super-4 number, since 4×21462700⁴ (a number of 30 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14631 + ... + 16030.

Almost surely, 2^21462700 is an apocalyptic number.

21462700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21462700 is an abundant number, since it is smaller than the sum of its proper divisors (31766532).

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

21462700 is a wasteful number, since it uses less digits than its factorization.

21462700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30682 (or 30675 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 21462700 is about 4632.7853392964. The cubic root of 21462700 is about 277.9039918285.

The spelling of 21462700 in words is "twenty-one million, four hundred sixty-two thousand, seven hundred".