13424940 has 60 divisors (see below), whose sum is σ = 42119616. Its totient is φ = 3579552.

The previous prime is 13424923. The next prime is 13424947. The reversal of 13424940 is 4942431.

13424940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13424947) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2524 + ... + 5763.

Almost surely, 2^13424940 is an apocalyptic number.

13424940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13424940 is an abundant number, since it is smaller than the sum of its proper divisors (28694676).

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

13424940 is a wasteful number, since it uses less digits than its factorization.

13424940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8308 (or 8297 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13424940 is about 3664.0060043619. The cubic root of 13424940 is about 237.6680398957.

The spelling of 13424940 in words is "thirteen million, four hundred twenty-four thousand, nine hundred forty".