21140098 has 24 divisors (see below), whose sum is σ = 37279872. Its totient is φ = 8807184.

The previous prime is 21140089. The next prime is 21140107. The reversal of 21140098 is 89004112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21140089) and next prime (21140107).

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, 18615 + ... + 19717.

It is an arithmetic number, because the mean of its divisors is an integer number (1553328).

Almost surely, 2^21140098 is an apocalyptic number.

21140098 is a deficient number, since it is larger than the sum of its proper divisors (16139774).

21140098 is a wasteful number, since it uses less digits than its factorization.

21140098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1149 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 21140098 is about 4597.8362302283. The cubic root of 21140098 is about 276.5045817600.

The spelling of 21140098 in words is "twenty-one million, one hundred forty thousand, ninety-eight".