15452040 has 32 divisors (see below), whose sum is σ = 46356480. Its totient is φ = 4120512.

The previous prime is 15452033. The next prime is 15452053. The reversal of 15452040 is 4025451.

It is a junction number, because it is equal to n+sod(n) for n = 15451998 and 15452016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64264 + ... + 64503.

It is an arithmetic number, because the mean of its divisors is an integer number (1448640).

Almost surely, 2^15452040 is an apocalyptic number.

15452040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15452040 is an abundant number, since it is smaller than the sum of its proper divisors (30904440).

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

15452040 is a wasteful number, since it uses less digits than its factorization.

15452040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128781 (or 128777 counting only the distinct ones).

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

The square root of 15452040 is about 3930.9082919855. The cubic root of 15452040 is about 249.0741218987.

Adding to 15452040 its reverse (4025451), we get a palindrome (19477491).

The spelling of 15452040 in words is "fifteen million, four hundred fifty-two thousand, forty".