21410942 has 12 divisors (see below), whose sum is σ = 37360080. Its totient is φ = 9176076.

The previous prime is 21410933. The next prime is 21410951. The reversal of 21410942 is 24901412.

It is an interprime number because it is at equal distance from previous prime (21410933) and next prime (21410951).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109142 + ... + 109337.

It is an arithmetic number, because the mean of its divisors is an integer number (3113340).

Almost surely, 2^21410942 is an apocalyptic number.

21410942 is a deficient number, since it is larger than the sum of its proper divisors (15949138).

21410942 is a wasteful number, since it uses less digits than its factorization.

21410942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218495 (or 218488 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 21410942 is about 4627.1959111324. The cubic root of 21410942 is about 277.6804205068.

The spelling of 21410942 in words is "twenty-one million, four hundred ten thousand, nine hundred forty-two".