40088140 has 48 divisors (see below), whose sum is σ = 87363360. Its totient is φ = 15441920.

The previous prime is 40088117. The next prime is 40088141. The reversal of 40088140 is 4188004.

It is not an unprimeable number, because it can be changed into a prime (40088141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62220 + ... + 62860.

It is an arithmetic number, because the mean of its divisors is an integer number (1820070).

Almost surely, 2^40088140 is an apocalyptic number.

It is an amenable number.

40088140 is an abundant number, since it is smaller than the sum of its proper divisors (47275220).

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

40088140 is a wasteful number, since it uses less digits than its factorization.

40088140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 40088140 is about 6331.5195648438. The cubic root of 40088140 is about 342.2462005244.

The spelling of 40088140 in words is "forty million, eighty-eight thousand, one hundred forty".