13472840 has 32 divisors (see below), whose sum is σ = 32098680. Its totient is φ = 5071872.

The previous prime is 13472839. The next prime is 13472863. The reversal of 13472840 is 4827431.

It can be written as a sum of positive squares in 4 ways, for example, as 8099716 + 5373124 = 2846^2 + 2318^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9227 + ... + 10586.

Almost surely, 2^13472840 is an apocalyptic number.

13472840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13472840 is an abundant number, since it is smaller than the sum of its proper divisors (18625840).

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

13472840 is a wasteful number, since it uses less digits than its factorization.

13472840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19841 (or 19837 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 13472840 is about 3670.5367454910. The cubic root of 13472840 is about 237.9503698034.

The spelling of 13472840 in words is "thirteen million, four hundred seventy-two thousand, eight hundred forty".