1393898694 has 32 divisors (see below), whose sum is σ = 2880783360. Its totient is φ = 449167200.

The previous prime is 1393898683. The next prime is 1393898711. The reversal of 1393898694 is 4968983931.

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, 199492 + ... + 206360.

It is an arithmetic number, because the mean of its divisors is an integer number (90024480).

Almost surely, 2^1393898694 is an apocalyptic number.

1393898694 is an abundant number, since it is smaller than the sum of its proper divisors (1486884666).

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

1393898694 is a wasteful number, since it uses less digits than its factorization.

1393898694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7996.

The product of its digits is 10077696, while the sum is 60.

The square root of 1393898694 is about 37334.9527119026. The cubic root of 1393898694 is about 1117.0614651941.

The spelling of 1393898694 in words is "one billion, three hundred ninety-three million, eight hundred ninety-eight thousand, six hundred ninety-four".