39145404 has 24 divisors (see below), whose sum is σ = 92368080. Its totient is φ = 12901504.

The previous prime is 39145399. The next prime is 39145423. The reversal of 39145404 is 40454193.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17259 + ... + 19394.

It is an arithmetic number, because the mean of its divisors is an integer number (3848670).

Almost surely, 2^39145404 is an apocalyptic number.

It is an amenable number.

39145404 is an abundant number, since it is smaller than the sum of its proper divisors (53222676).

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

39145404 is a wasteful number, since it uses less digits than its factorization.

39145404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36749 (or 36747 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 39145404 is about 6256.6288047158. The cubic root of 39145404 is about 339.5420709430.

Adding to 39145404 its reverse (40454193), we get a palindrome (79599597).

The spelling of 39145404 in words is "thirty-nine million, one hundred forty-five thousand, four hundred four".