13459440 has 40 divisors (see below), whose sum is σ = 41725008. Its totient is φ = 3589120.

The previous prime is 13459409. The next prime is 13459447. The reversal of 13459440 is 4495431.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×13459440² = 362313050227200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13459398 and 13459407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13459447) 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, 27801 + ... + 28280.

Almost surely, 2^13459440 is an apocalyptic number.

13459440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13459440 is an abundant number, since it is smaller than the sum of its proper divisors (28265568).

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

13459440 is a wasteful number, since it uses less digits than its factorization.

13459440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56097 (or 56091 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 13459440 is about 3668.7109452776. The cubic root of 13459440 is about 237.8714556660.

The spelling of 13459440 in words is "thirteen million, four hundred fifty-nine thousand, four hundred forty".