40022011997 has 16 divisors (see below), whose sum is σ = 43858584000. Its totient is φ = 36218640000.

The previous prime is 40022011979. The next prime is 40022012011. The reversal of 40022011997 is 79911022004.

It is a cyclic number.

It is not a de Polignac number, because 40022011997 - 2²⁰ = 40020963421 is a prime.

It is a super-2 number, since 2×40022011997² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40022011927) 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, 7587353 + ... + 7592625.

It is an arithmetic number, because the mean of its divisors is an integer number (2741161500).

Almost surely, 2^40022011997 is an apocalyptic number.

It is an amenable number.

40022011997 is a deficient number, since it is larger than the sum of its proper divisors (3836572003).

40022011997 is a wasteful number, since it uses less digits than its factorization.

40022011997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8284.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 40022011997 in words is "forty billion, twenty-two million, eleven thousand, nine hundred ninety-seven".