15472040 has 64 divisors (see below), whose sum is σ = 37564560. Its totient is φ = 5713920.

The previous prime is 15472033. The next prime is 15472043. The reversal of 15472040 is 4027451.

It can be written as a sum of positive squares in 8 ways, for example, as 4674244 + 10797796 = 2162^2 + 3286^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15471997 and 15472015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15472043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41294 + ... + 41666.

Almost surely, 2^15472040 is an apocalyptic number.

15472040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15472040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18782280).

15472040 is an abundant number, since it is smaller than the sum of its proper divisors (22092520).

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

15472040 is a wasteful number, since it uses less digits than its factorization.

15472040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 15472040 is about 3933.4514106571. The cubic root of 15472040 is about 249.1815367290.

Adding to 15472040 its reverse (4027451), we get a palindrome (19499491).

The spelling of 15472040 in words is "fifteen million, four hundred seventy-two thousand, forty".