11415972 has 12 divisors (see below), whose sum is σ = 26637296. Its totient is φ = 3805320.

The previous prime is 11415961. The next prime is 11415973. The reversal of 11415972 is 27951411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×11415972³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11415973) 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 3 ways as a sum of consecutive naturals, for example, 475654 + ... + 475677.

Almost surely, 2^11415972 is an apocalyptic number.

11415972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11415972 is an abundant number, since it is smaller than the sum of its proper divisors (15221324).

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

11415972 is a wasteful number, since it uses less digits than its factorization.

11415972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951338 (or 951336 counting only the distinct ones).

The product of its digits is 2520, while the sum is 30.

The square root of 11415972 is about 3378.7530244160. The cubic root of 11415972 is about 225.1667701864.

The spelling of 11415972 in words is "eleven million, four hundred fifteen thousand, nine hundred seventy-two".