13981170 has 48 divisors (see below), whose sum is σ = 39037248. Its totient is φ = 3195360.

The previous prime is 13981147. The next prime is 13981193. The reversal of 13981170 is 7118931.

It is an interprime number because it is at equal distance from previous prime (13981147) and next prime (13981193).

It is a super-2 number, since 2×13981170² = 390946229137800, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 3286 + ... + 6225.

It is an arithmetic number, because the mean of its divisors is an integer number (813276).

Almost surely, 2^13981170 is an apocalyptic number.

13981170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13981170 is an abundant number, since it is smaller than the sum of its proper divisors (25056078).

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

13981170 is a wasteful number, since it uses less digits than its factorization.

13981170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9535 (or 9528 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 13981170 is about 3739.1402755179. The cubic root of 13981170 is about 240.9061232253.

The spelling of 13981170 in words is "thirteen million, nine hundred eighty-one thousand, one hundred seventy".