15272040 has 64 divisors (see below), whose sum is σ = 52364160. Its totient is φ = 3490560.

The previous prime is 15272017. The next prime is 15272041. The reversal of 15272040 is 4027251.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 15271998 and 15272016.

It is not an unprimeable number, because it can be changed into a prime (15272041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8251 + ... + 9930.

It is an arithmetic number, because the mean of its divisors is an integer number (818190).

Almost surely, 2^15272040 is an apocalyptic number.

15272040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15272040 is an abundant number, since it is smaller than the sum of its proper divisors (37092120).

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

15272040 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 8 representation: 15272040 = (72204150)₈.

15272040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18202 (or 18198 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 15272040 is about 3907.9457519265. The cubic root of 15272040 is about 248.1031915345.

Adding to 15272040 its reverse (4027251), we get a palindrome (19299291).

The spelling of 15272040 in words is "fifteen million, two hundred seventy-two thousand, forty".