21167046 has 24 divisors (see below), whose sum is σ = 45995040. Its totient is φ = 7035216.

The previous prime is 21167021. The next prime is 21167053. The reversal of 21167046 is 64076112.

It is a super-2 number, since 2×21167046² = 896087672732232, 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 in 11 ways as a sum of consecutive naturals, for example, 5491 + ... + 8513.

It is an arithmetic number, because the mean of its divisors is an integer number (1916460).

Almost surely, 2^21167046 is an apocalyptic number.

21167046 is an abundant number, since it is smaller than the sum of its proper divisors (24827994).

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

21167046 is a wasteful number, since it uses less digits than its factorization.

21167046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420 (or 3417 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 21167046 is about 4600.7658058197. The cubic root of 21167046 is about 276.6220217957.

The spelling of 21167046 in words is "twenty-one million, one hundred sixty-seven thousand, forty-six".