1393049568 has 96 divisors (see below), whose sum is σ = 3793577760. Its totient is φ = 447068160.

The previous prime is 1393049473. The next prime is 1393049569. The reversal of 1393049568 is 8659403931.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393049569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1839846 + ... + 1840602.

It is an arithmetic number, because the mean of its divisors is an integer number (39516435).

Almost surely, 2^1393049568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1393049568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1896788880).

1393049568 is an abundant number, since it is smaller than the sum of its proper divisors (2400528192).

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

1393049568 is a wasteful number, since it uses less digits than its factorization.

1393049568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460 (or 1452 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 1393049568 is about 37323.5792495843. The cubic root of 1393049568 is about 1116.8345910775.

The spelling of 1393049568 in words is "one billion, three hundred ninety-three million, forty-nine thousand, five hundred sixty-eight".