39240468 has 18 divisors (see below), whose sum is σ = 99191274. Its totient is φ = 13080144.

The previous prime is 39240449. The next prime is 39240469. The reversal of 39240468 is 86404293.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26193924 + 13046544 = 5118^2 + 3612^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1090013 = 39240468 / (3 + 9 + 2 + 4 + 0 + 4 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39240469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 544971 + ... + 545042.

Almost surely, 2^39240468 is an apocalyptic number.

It is an amenable number.

39240468 is an abundant number, since it is smaller than the sum of its proper divisors (59950806).

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

39240468 is a wasteful number, since it uses less digits than its factorization.

39240468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090023 (or 1090018 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 39240468 is about 6264.2212604601. The cubic root of 39240468 is about 339.8167062792.

The spelling of 39240468 in words is "thirty-nine million, two hundred forty thousand, four hundred sixty-eight".