13679740 has 24 divisors (see below), whose sum is σ = 29216880. Its totient is φ = 5378688.

The previous prime is 13679737. The next prime is 13679749. The reversal of 13679740 is 4797631.

It is a self number, because there is not a number n which added to its sum of digits gives 13679740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13679749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4617 + ... + 6976.

It is an arithmetic number, because the mean of its divisors is an integer number (1217370).

Almost surely, 2^13679740 is an apocalyptic number.

13679740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13679740 is an abundant number, since it is smaller than the sum of its proper divisors (15537140).

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

13679740 is a wasteful number, since it uses less digits than its factorization.

13679740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11661 (or 11659 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 13679740 is about 3698.6132536398. The cubic root of 13679740 is about 239.1622411065.

The spelling of 13679740 in words is "thirteen million, six hundred seventy-nine thousand, seven hundred forty".