40660916 has 6 divisors (see below), whose sum is σ = 71156610. Its totient is φ = 20330456.

The previous prime is 40660913. The next prime is 40660937. The reversal of 40660916 is 61906604.

It can be written as a sum of positive squares in only one way, i.e., 35952016 + 4708900 = 5996^2 + 2170^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40660913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5082611 + ... + 5082618.

It is an arithmetic number, because the mean of its divisors is an integer number (11859435).

Almost surely, 2^40660916 is an apocalyptic number.

It is an amenable number.

40660916 is a deficient number, since it is larger than the sum of its proper divisors (30495694).

40660916 is a wasteful number, since it uses less digits than its factorization.

40660916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10165233 (or 10165231 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 40660916 is about 6376.5912523856. The cubic root of 40660916 is about 343.8684935408.

The spelling of 40660916 in words is "forty million, six hundred sixty thousand, nine hundred sixteen".