13997380 has 24 divisors (see below), whose sum is σ = 29490048. Its totient is φ = 5580768.

The previous prime is 13997371. The next prime is 13997383. The reversal of 13997380 is 8379931.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13997383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6387 + ... + 8293.

It is an arithmetic number, because the mean of its divisors is an integer number (1228752).

Almost surely, 2^13997380 is an apocalyptic number.

13997380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13997380 is an abundant number, since it is smaller than the sum of its proper divisors (15492668).

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

13997380 is a wasteful number, since it uses less digits than its factorization.

13997380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283 (or 2281 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 13997380 is about 3741.3072581653. The cubic root of 13997380 is about 240.9991907826. Note that the first 3 decimals are identical.

The spelling of 13997380 in words is "thirteen million, nine hundred ninety-seven thousand, three hundred eighty".