40580920 has 32 divisors (see below), whose sum is σ = 92257200. Its totient is φ = 16063488.

The previous prime is 40580909. The next prime is 40580923. The reversal of 40580920 is 2908504.

It is a happy number.

It is a super-2 number, since 2×40580920² = 3293622136092800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40580923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1350 + ... + 9109.

Almost surely, 2^40580920 is an apocalyptic number.

40580920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40580920 is an abundant number, since it is smaller than the sum of its proper divisors (51676280).

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

40580920 is a wasteful number, since it uses less digits than its factorization.

40580920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10567 (or 10563 counting only the distinct ones).

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

The square root of 40580920 is about 6370.3155337864. The cubic root of 40580920 is about 343.6428373398.

The spelling of 40580920 in words is "forty million, five hundred eighty thousand, nine hundred twenty".