40085860 has 12 divisors (see below), whose sum is σ = 84180348. Its totient is φ = 16034336.

The previous prime is 40085831. The next prime is 40085887. The reversal of 40085860 is 6858004.

It can be written as a sum of positive squares in 2 ways, for example, as 6260004 + 33825856 = 2502^2 + 5816^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002127 + ... + 1002166.

It is an arithmetic number, because the mean of its divisors is an integer number (7015029).

Almost surely, 2^40085860 is an apocalyptic number.

It is an amenable number.

40085860 is an abundant number, since it is smaller than the sum of its proper divisors (44094488).

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

40085860 is a wasteful number, since it uses less digits than its factorization.

40085860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004302 (or 2004300 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 40085860 is about 6331.3395107197. The cubic root of 40085860 is about 342.2397120207.

The spelling of 40085860 in words is "forty million, eighty-five thousand, eight hundred sixty".