40160639 has 2 divisors, whose sum is σ = 40160640. Its totient is φ = 40160638.

The previous prime is 40160633. The next prime is 40160663. The reversal of 40160639 is 93606104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40160639 - 2⁸ = 40160383 is a prime.

It is a super-2 number, since 2×40160639² = 3225753849776642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40160633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20080319 + 20080320.

It is an arithmetic number, because the mean of its divisors is an integer number (20080320).

Almost surely, 2^40160639 is an apocalyptic number.

40160639 is a deficient number, since it is larger than the sum of its proper divisors (1).

40160639 is an equidigital number, since it uses as much as digits as its factorization.

40160639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 40160639 is about 6337.2422235543. The cubic root of 40160639 is about 342.4523925517.

The spelling of 40160639 in words is "forty million, one hundred sixty thousand, six hundred thirty-nine".