1393081960 has 32 divisors (see below), whose sum is σ = 3172206240. Its totient is φ = 550517824.

The previous prime is 1393081861. The next prime is 1393081979. The reversal of 1393081960 is 691803931.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206482 + ... + 213121.

It is an arithmetic number, because the mean of its divisors is an integer number (99131445).

Almost surely, 2^1393081960 is an apocalyptic number.

1393081960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1393081960 is an abundant number, since it is smaller than the sum of its proper divisors (1779124280).

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

1393081960 is a wasteful number, since it uses less digits than its factorization.

1393081960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419697 (or 419693 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1393081960 is about 37324.0131818646. The cubic root of 1393081960 is about 1116.8432474399.

The spelling of 1393081960 in words is "one billion, three hundred ninety-three million, eighty-one thousand, nine hundred sixty".