40231140 has 48 divisors (see below), whose sum is σ = 117548928. Its totient is φ = 10261504.

The previous prime is 40231133. The next prime is 40231153. The reversal of 40231140 is 4113204.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13197 + ... + 15956.

It is an arithmetic number, because the mean of its divisors is an integer number (2448936).

Almost surely, 2^40231140 is an apocalyptic number.

It is an amenable number.

40231140 is an abundant number, since it is smaller than the sum of its proper divisors (77317788).

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

40231140 is a wasteful number, since it uses less digits than its factorization.

40231140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29188 (or 29186 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40231140 is about 6342.8022198394. The cubic root of 40231140 is about 342.6526642844.

Adding to 40231140 its reverse (4113204), we get a palindrome (44344344).

The spelling of 40231140 in words is "forty million, two hundred thirty-one thousand, one hundred forty".