21482072 has 8 divisors (see below), whose sum is σ = 40278900. Its totient is φ = 10741032.

The previous prime is 21482063. The next prime is 21482081. The reversal of 21482072 is 27028412.

It is an interprime number because it is at equal distance from previous prime (21482063) and next prime (21482081).

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×21482072² = 922958834826368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342622 + ... + 1342637.

Almost surely, 2^21482072 is an apocalyptic number.

It is an amenable number.

21482072 is a deficient number, since it is larger than the sum of its proper divisors (18796828).

21482072 is a wasteful number, since it uses less digits than its factorization.

21482072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685265 (or 2685261 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 21482072 is about 4634.8756186116. The cubic root of 21482072 is about 277.9875777276.

The spelling of 21482072 in words is "twenty-one million, four hundred eighty-two thousand, seventy-two".