13458972 has 24 divisors (see below), whose sum is σ = 32254096. Its totient is φ = 4364928.

The previous prime is 13458971. The next prime is 13458989. The reversal of 13458972 is 27985431.

It is a super-2 number, since 2×13458972² = 362287854593568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13458972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13458971) by changing a digit.

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, 14713 + ... + 15600.

Almost surely, 2^13458972 is an apocalyptic number.

13458972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13458972 is an abundant number, since it is smaller than the sum of its proper divisors (18795124).

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

13458972 is a wasteful number, since it uses less digits than its factorization.

13458972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30357 (or 30355 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 13458972 is about 3668.6471621021. The cubic root of 13458972 is about 237.8686986139.

The spelling of 13458972 in words is "thirteen million, four hundred fifty-eight thousand, nine hundred seventy-two".