40086500 has 24 divisors (see below), whose sum is σ = 87550008. Its totient is φ = 16034400.

The previous prime is 40086491. The next prime is 40086509. The reversal of 40086500 is 568004.

It is an interprime number because it is at equal distance from previous prime (40086491) and next prime (40086509).

It can be written as a sum of positive squares in 4 ways, for example, as 5134756 + 34951744 = 2266^2 + 5912^2 .

It is not an unprimeable number, because it can be changed into a prime (40086509) 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, 39587 + ... + 40586.

It is an arithmetic number, because the mean of its divisors is an integer number (3647917).

Almost surely, 2^40086500 is an apocalyptic number.

It is an amenable number.

40086500 is an abundant number, since it is smaller than the sum of its proper divisors (47463508).

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

40086500 is a wasteful number, since it uses less digits than its factorization.

40086500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80192 (or 80180 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 40086500 is about 6331.3900527451. The cubic root of 40086500 is about 342.2415333799.

The spelling of 40086500 in words is "forty million, eighty-six thousand, five hundred".