13457994 has 16 divisors (see below), whose sum is σ = 29363040. Its totient is φ = 4078160.

The previous prime is 13457993. The next prime is 13458007. The reversal of 13457994 is 49975431.

13457994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13457994² = 362235205008072, which contains 22 as substring.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (13457993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101889 + ... + 102020.

It is an arithmetic number, because the mean of its divisors is an integer number (1835190).

Almost surely, 2^13457994 is an apocalyptic number.

13457994 is an abundant number, since it is smaller than the sum of its proper divisors (15905046).

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

13457994 is a wasteful number, since it uses less digits than its factorization.

13457994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203925.

The product of its digits is 136080, while the sum is 42.

The square root of 13457994 is about 3668.5138680398. The cubic root of 13457994 is about 237.8629368757.

It can be divided in two parts, 1345 and 7994, that added together give a palindrome (9339).

The spelling of 13457994 in words is "thirteen million, four hundred fifty-seven thousand, nine hundred ninety-four".