21374002 has 16 divisors (see below), whose sum is σ = 35263872. Its totient is φ = 9654480.

The previous prime is 21373991. The next prime is 21374011. The reversal of 21374002 is 20047312.

It is a super-2 number, since 2×21374002² = 913695922992008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7524 + ... + 9967.

It is an arithmetic number, because the mean of its divisors is an integer number (2203992).

Almost surely, 2^21374002 is an apocalyptic number.

21374002 is a deficient number, since it is larger than the sum of its proper divisors (13889870).

21374002 is a wasteful number, since it uses less digits than its factorization.

21374002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17553.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 21374002 is about 4623.2025696480. The cubic root of 21374002 is about 277.5206358596.

The spelling of 21374002 in words is "twenty-one million, three hundred seventy-four thousand, two".