13918530 has 32 divisors (see below), whose sum is σ = 33755904. Its totient is φ = 3672576.

The previous prime is 13918523. The next prime is 13918547. The reversal of 13918530 is 3581931.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519 + ... + 5301.

It is an arithmetic number, because the mean of its divisors is an integer number (1054872).

Almost surely, 2^13918530 is an apocalyptic number.

13918530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13918530 is an abundant number, since it is smaller than the sum of its proper divisors (19837374).

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

13918530 is a wasteful number, since it uses less digits than its factorization.

13918530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 13918530 is about 3730.7546153560. The cubic root of 13918530 is about 240.5458064009.

The spelling of 13918530 in words is "thirteen million, nine hundred eighteen thousand, five hundred thirty".