21474662 has 16 divisors (see below), whose sum is σ = 35251200. Its totient is φ = 9730440.

The previous prime is 21474647. The next prime is 21474667. The reversal of 21474662 is 26647412.

It is a super-2 number, since 2×21474662² = 922322216028488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21474667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6539 + ... + 9257.

It is an arithmetic number, because the mean of its divisors is an integer number (2203200).

Almost surely, 2^21474662 is an apocalyptic number.

21474662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21474662 is a deficient number, since it is larger than the sum of its proper divisors (13776538).

21474662 is a wasteful number, since it uses less digits than its factorization.

21474662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091.

The product of its digits is 16128, while the sum is 32.

The square root of 21474662 is about 4634.0761754637. The cubic root of 21474662 is about 277.9556111519.

The spelling of 21474662 in words is "twenty-one million, four hundred seventy-four thousand, six hundred sixty-two".