15040394 has 16 divisors (see below), whose sum is σ = 23387136. Its totient is φ = 7246800.

The previous prime is 15040391. The next prime is 15040429. The reversal of 15040394 is 49304051.

It is not an unprimeable number, because it can be changed into a prime (15040391) 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, 22424 + ... + 23084.

It is an arithmetic number, because the mean of its divisors is an integer number (1461696).

Almost surely, 2^15040394 is an apocalyptic number.

15040394 is a deficient number, since it is larger than the sum of its proper divisors (8346742).

15040394 is a wasteful number, since it uses less digits than its factorization.

15040394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 15040394 is about 3878.1946830968. The cubic root of 15040394 is about 246.8423871677.

The spelling of 15040394 in words is "fifteen million, forty thousand, three hundred ninety-four".