13880730 has 32 divisors (see below), whose sum is σ = 34763904. Its totient is φ = 3540416.

The previous prime is 13880729. The next prime is 13880743. The reversal of 13880730 is 3708831.

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, 9369 + ... + 10748.

It is an arithmetic number, because the mean of its divisors is an integer number (1086372).

Almost surely, 2^13880730 is an apocalyptic number.

13880730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13880730 is an abundant number, since it is smaller than the sum of its proper divisors (20883174).

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

13880730 is a wasteful number, since it uses less digits than its factorization.

13880730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20150.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 13880730 is about 3725.6851718845. The cubic root of 13880730 is about 240.3278505489.

The spelling of 13880730 in words is "thirteen million, eight hundred eighty thousand, seven hundred thirty".