40655080 has 32 divisors (see below), whose sum is σ = 91824840. Its totient is φ = 16199680.

The previous prime is 40655063. The next prime is 40655107. The reversal of 40655080 is 8055604.

It can be written as a sum of positive squares in 4 ways, for example, as 22524516 + 18130564 = 4746^2 + 4258^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9432 + ... + 13048.

Almost surely, 2^40655080 is an apocalyptic number.

40655080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40655080 is an abundant number, since it is smaller than the sum of its proper divisors (51169760).

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

40655080 is a wasteful number, since it uses less digits than its factorization.

40655080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909 (or 3905 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 40655080 is about 6376.1336246977. The cubic root of 40655080 is about 343.8520411114.

The spelling of 40655080 in words is "forty million, six hundred fifty-five thousand, eighty".