40796021 has 16 divisors (see below), whose sum is σ = 49580160. Its totient is φ = 32788800.

The previous prime is 40796009. The next prime is 40796023. The reversal of 40796021 is 12069704.

It is a cyclic number.

It is not a de Polignac number, because 40796021 - 2⁶ = 40795957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40796023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11915 + ... + 14951.

It is an arithmetic number, because the mean of its divisors is an integer number (3098760).

Almost surely, 2^40796021 is an apocalyptic number.

It is an amenable number.

40796021 is a deficient number, since it is larger than the sum of its proper divisors (8784139).

40796021 is a wasteful number, since it uses less digits than its factorization.

40796021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 40796021 is about 6387.1762931674. The cubic root of 40796021 is about 344.2489325148.

The spelling of 40796021 in words is "forty million, seven hundred ninety-six thousand, twenty-one".