40659040 has 24 divisors (see below), whose sum is σ = 96057360. Its totient is φ = 16263552.

The previous prime is 40658987. The next prime is 40659043. The reversal of 40659040 is 4095604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40659043) 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, 126900 + ... + 127219.

It is an arithmetic number, because the mean of its divisors is an integer number (4002390).

Almost surely, 2^40659040 is an apocalyptic number.

40659040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40659040 is an abundant number, since it is smaller than the sum of its proper divisors (55398320).

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

40659040 is a wasteful number, since it uses less digits than its factorization.

40659040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254134 (or 254126 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40659040 is about 6376.4441501514. Note that the first 3 decimals coincide. The cubic root of 40659040 is about 343.8632050289.

The spelling of 40659040 in words is "forty million, six hundred fifty-nine thousand, forty".