40920580 has 12 divisors (see below), whose sum is σ = 85933260. Its totient is φ = 16368224.

The previous prime is 40920553. The next prime is 40920587. The reversal of 40920580 is 8502904.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7650756 + 33269824 = 2766^2 + 5768^2 .

It is not an unprimeable number, because it can be changed into a prime (40920587) 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, 1022995 + ... + 1023034.

It is an arithmetic number, because the mean of its divisors is an integer number (7161105).

Almost surely, 2^40920580 is an apocalyptic number.

It is an amenable number.

40920580 is an abundant number, since it is smaller than the sum of its proper divisors (45012680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40920580 is a wasteful number, since it uses less digits than its factorization.

40920580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046038 (or 2046036 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 40920580 is about 6396.9195711686. The cubic root of 40920580 is about 344.5989318179.

The spelling of 40920580 in words is "forty million, nine hundred twenty thousand, five hundred eighty".