13457870 has 8 divisors (see below), whose sum is σ = 24224184. Its totient is φ = 5383144.

The previous prime is 13457849. The next prime is 13457879. The reversal of 13457870 is 7875431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13457870² = 362228529873800, 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 13457870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13457879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672884 + ... + 672903.

It is an arithmetic number, because the mean of its divisors is an integer number (3028023).

Almost surely, 2^13457870 is an apocalyptic number.

13457870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13457870 is a deficient number, since it is larger than the sum of its proper divisors (10766314).

13457870 is a wasteful number, since it uses less digits than its factorization.

13457870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345794.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 13457870 is about 3668.4969674241. The cubic root of 13457870 is about 237.8622063286.

The spelling of 13457870 in words is "thirteen million, four hundred fifty-seven thousand, eight hundred seventy".