13140472 has 8 divisors (see below), whose sum is σ = 24638400. Its totient is φ = 6570232.

The previous prime is 13140469. The next prime is 13140487. The reversal of 13140472 is 27404131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821272 + ... + 821287.

It is an arithmetic number, because the mean of its divisors is an integer number (3079800).

Almost surely, 2^13140472 is an apocalyptic number.

It is an amenable number.

13140472 is a deficient number, since it is larger than the sum of its proper divisors (11497928).

13140472 is a wasteful number, since it uses less digits than its factorization.

13140472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642565 (or 1642561 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 13140472 is about 3624.9788964903. The cubic root of 13140472 is about 235.9773510774.

The spelling of 13140472 in words is "thirteen million, one hundred forty thousand, four hundred seventy-two".