40885597 has 4 divisors (see below), whose sum is σ = 41307196. Its totient is φ = 40464000.

The previous prime is 40885589. The next prime is 40885619. The reversal of 40885597 is 79558804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30349081 + 10536516 = 5509^2 + 3246^2 .

It is a cyclic number.

It is not a de Polignac number, because 40885597 - 2³ = 40885589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40885567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210654 + ... + 210847.

It is an arithmetic number, because the mean of its divisors is an integer number (10326799).

Almost surely, 2^40885597 is an apocalyptic number.

It is an amenable number.

40885597 is a deficient number, since it is larger than the sum of its proper divisors (421599).

40885597 is an equidigital number, since it uses as much as digits as its factorization.

40885597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421598.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 40885597 is about 6394.1846235466. The cubic root of 40885597 is about 344.5007046230.

The spelling of 40885597 in words is "forty million, eight hundred eighty-five thousand, five hundred ninety-seven".