40709860 has 12 divisors (see below), whose sum is σ = 85490748. Its totient is φ = 16283936.

The previous prime is 40709831. The next prime is 40709861. The reversal of 40709860 is 6890704.

It can be written as a sum of positive squares in 2 ways, for example, as 13586596 + 27123264 = 3686^2 + 5208^2 .

It is not an unprimeable number, because it can be changed into a prime (40709861) 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, 1017727 + ... + 1017766.

It is an arithmetic number, because the mean of its divisors is an integer number (7124229).

Almost surely, 2^40709860 is an apocalyptic number.

It is an amenable number.

40709860 is an abundant number, since it is smaller than the sum of its proper divisors (44780888).

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

40709860 is a wasteful number, since it uses less digits than its factorization.

40709860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035502 (or 2035500 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 40709860 is about 6380.4278853381. The cubic root of 40709860 is about 344.0064110036.

The spelling of 40709860 in words is "forty million, seven hundred nine thousand, eight hundred sixty".