1390171080 has 64 divisors (see below), whose sum is σ = 4267517760. Its totient is φ = 362089728.

The previous prime is 1390171063. The next prime is 1390171103. The reversal of 1390171080 is 801710931.

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, 129547 + ... + 139866.

It is an arithmetic number, because the mean of its divisors is an integer number (66679965).

Almost surely, 2^1390171080 is an apocalyptic number.

1390171080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390171080 is an abundant number, since it is smaller than the sum of its proper divisors (2877346680).

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

1390171080 is a wasteful number, since it uses less digits than its factorization.

1390171080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269470 (or 269466 counting only the distinct ones).

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

The square root of 1390171080 is about 37284.9980555183. The cubic root of 1390171080 is about 1116.0648142622.

The spelling of 1390171080 in words is "one billion, three hundred ninety million, one hundred seventy-one thousand, eighty".