13999480 has 32 divisors (see below), whose sum is σ = 34363440. Its totient is φ = 5090560.

The previous prime is 13999477. The next prime is 13999481. The reversal of 13999480 is 8499931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13999481) 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, 15469 + ... + 16348.

Almost surely, 2^13999480 is an apocalyptic number.

13999480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13999480 is an abundant number, since it is smaller than the sum of its proper divisors (20363960).

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

13999480 is a wasteful number, since it uses less digits than its factorization.

13999480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31839 (or 31835 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 13999480 is about 3741.5878982058. The cubic root of 13999480 is about 241.0112423949.

The spelling of 13999480 in words is "thirteen million, nine hundred ninety-nine thousand, four hundred eighty".