15425040 has 40 divisors (see below), whose sum is σ = 47818368. Its totient is φ = 4113280.

The previous prime is 15425029. The next prime is 15425057. The reversal of 15425040 is 4052451.

15425040 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 15424998 and 15425016.

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, 31896 + ... + 32375.

Almost surely, 2^15425040 is an apocalyptic number.

15425040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15425040 is an abundant number, since it is smaller than the sum of its proper divisors (32393328).

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

15425040 is a wasteful number, since it uses less digits than its factorization.

15425040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64287 (or 64281 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 15425040 is about 3927.4724696680. The cubic root of 15425040 is about 248.9289647532.

Adding to 15425040 its reverse (4052451), we get a palindrome (19477491).

It can be divided in two parts, 154250 and 40, that added together give a triangular number (154290 = T₅₅₅).

The spelling of 15425040 in words is "fifteen million, four hundred twenty-five thousand, forty".