39145394 has 16 divisors (see below), whose sum is σ = 60292320. Its totient is φ = 19051200.

The previous prime is 39145367. The next prime is 39145397. The reversal of 39145394 is 49354193.

It is not an unprimeable number, because it can be changed into a prime (39145397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31994 + ... + 33194.

It is an arithmetic number, because the mean of its divisors is an integer number (3768270).

Almost surely, 2^39145394 is an apocalyptic number.

39145394 is a deficient number, since it is larger than the sum of its proper divisors (21146926).

39145394 is a wasteful number, since it uses less digits than its factorization.

39145394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625.

The product of its digits is 58320, while the sum is 38.

The square root of 39145394 is about 6256.6280055634. The cubic root of 39145394 is about 339.5420420301.

The spelling of 39145394 in words is "thirty-nine million, one hundred forty-five thousand, three hundred ninety-four".