39231140 has 24 divisors (see below), whose sum is σ = 88723320. Its totient is φ = 14485248.

The previous prime is 39231131. The next prime is 39231167. The reversal of 39231140 is 4113293.

39231140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18496 + 39212644 = 136^2 + 6262^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75185 + ... + 75704.

It is an arithmetic number, because the mean of its divisors is an integer number (3696805).

Almost surely, 2^39231140 is an apocalyptic number.

It is an amenable number.

39231140 is an abundant number, since it is smaller than the sum of its proper divisors (49492180).

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

39231140 is a wasteful number, since it uses less digits than its factorization.

39231140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150911 (or 150909 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 39231140 is about 6263.4766703485. The cubic root of 39231140 is about 339.7897777740.

The spelling of 39231140 in words is "thirty-nine million, two hundred thirty-one thousand, one hundred forty".