21074352 has 40 divisors (see below), whose sum is σ = 58631664. Its totient is φ = 6484224.

The previous prime is 21074323. The next prime is 21074353. The reversal of 21074352 is 25347012.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (21074353) 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, 16263 + ... + 17510.

Almost surely, 2^21074352 is an apocalyptic number.

It is an amenable number.

21074352 is an abundant number, since it is smaller than the sum of its proper divisors (37557312).

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

21074352 is a wasteful number, since it uses less digits than its factorization.

21074352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33797 (or 33791 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 21074352 is about 4590.6809952337. The cubic root of 21074352 is about 276.2176397193.

The spelling of 21074352 in words is "twenty-one million, seventy-four thousand, three hundred fifty-two".