15140424 has 32 divisors (see below), whose sum is σ = 40763520. Its totient is φ = 4658496.

The previous prime is 15140381. The next prime is 15140449. The reversal of 15140424 is 42404151.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 15140424.

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, 23952 + ... + 24575.

It is an arithmetic number, because the mean of its divisors is an integer number (1273860).

Almost surely, 2^15140424 is an apocalyptic number.

It is an amenable number.

15140424 is an abundant number, since it is smaller than the sum of its proper divisors (25623096).

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

15140424 is a wasteful number, since it uses less digits than its factorization.

15140424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48549 (or 48545 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 15140424 is about 3891.0697757815. The cubic root of 15140424 is about 247.3884080139.

Adding to 15140424 its reverse (42404151), we get a palindrome (57544575).

The spelling of 15140424 in words is "fifteen million, one hundred forty thousand, four hundred twenty-four".