40722597 has 6 divisors (see below), whose sum is σ = 58821542. Its totient is φ = 27148392.

The previous prime is 40722593. The next prime is 40722631. The reversal of 40722597 is 79522704.

40722597 is a `hidden beast` number, since 40 + 7 + 22 + 597 = 666.

It can be written as a sum of positive squares in only one way, i.e., 40373316 + 349281 = 6354^2 + 591^2 .

It is not a de Polignac number, because 40722597 - 2² = 40722593 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 (40722593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2262358 + ... + 2262375.

Almost surely, 2^40722597 is an apocalyptic number.

It is an amenable number.

40722597 is a deficient number, since it is larger than the sum of its proper divisors (18098945).

40722597 is a wasteful number, since it uses less digits than its factorization.

40722597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524739 (or 4524736 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 40722597 is about 6381.4259378293. The cubic root of 40722597 is about 344.0422839901.

The spelling of 40722597 in words is "forty million, seven hundred twenty-two thousand, five hundred ninety-seven".