13880290 has 8 divisors (see below), whose sum is σ = 24984540. Its totient is φ = 5552112.

The previous prime is 13880261. The next prime is 13880327. The reversal of 13880290 is 9208831.

It can be written as a sum of positive squares in 2 ways, for example, as 13169641 + 710649 = 3629^2 + 843^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694005 + ... + 694024.

Almost surely, 2^13880290 is an apocalyptic number.

13880290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13880290 is a deficient number, since it is larger than the sum of its proper divisors (11104250).

13880290 is a wasteful number, since it uses less digits than its factorization.

13880290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388036.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 13880290 is about 3725.6261218754. The cubic root of 13880290 is about 240.3253111683.

The spelling of 13880290 in words is "thirteen million, eight hundred eighty thousand, two hundred ninety".