13880245 has 16 divisors (see below), whose sum is σ = 17931888. Its totient is φ = 10275840.

The previous prime is 13880231. The next prime is 13880257. The reversal of 13880245 is 54208831.

It can be written as a sum of positive squares in 8 ways, for example, as 3786916 + 10093329 = 1946^2 + 3177^2 .

It is not a de Polignac number, because 13880245 - 2¹¹ = 13878197 is a prime.

It is a super-2 number, since 2×13880245² = 385322402520050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 3847 + ... + 6523.

It is an arithmetic number, because the mean of its divisors is an integer number (1120743).

Almost surely, 2^13880245 is an apocalyptic number.

It is an amenable number.

13880245 is a deficient number, since it is larger than the sum of its proper divisors (4051643).

13880245 is a wasteful number, since it uses less digits than its factorization.

13880245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 13880245 is about 3725.6200826171. The cubic root of 13880245 is about 240.3250514559.

The spelling of 13880245 in words is "thirteen million, eight hundred eighty thousand, two hundred forty-five".