21467672 has 16 divisors (see below), whose sum is σ = 40644240. Its totient is φ = 10629216.

The previous prime is 21467657. The next prime is 21467687. The reversal of 21467672 is 27676412.

It is an interprime number because it is at equal distance from previous prime (21467657) and next prime (21467687).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12203 + ... + 13850.

It is an arithmetic number, because the mean of its divisors is an integer number (2540265).

Almost surely, 2^21467672 is an apocalyptic number.

It is an amenable number.

21467672 is a deficient number, since it is larger than the sum of its proper divisors (19176568).

21467672 is a wasteful number, since it uses less digits than its factorization.

21467672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26162 (or 26158 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 21467672 is about 4633.3219184512. The cubic root of 21467672 is about 277.9254497061.

The spelling of 21467672 in words is "twenty-one million, four hundred sixty-seven thousand, six hundred seventy-two".