1393379814 has 32 divisors (see below), whose sum is σ = 2803683456. Its totient is φ = 461648000.

The previous prime is 1393379749. The next prime is 1393379837. The reversal of 1393379814 is 4189733931.

It is a happy number.

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, 1425694 + ... + 1426670.

It is an arithmetic number, because the mean of its divisors is an integer number (87615108).

Almost surely, 2^1393379814 is an apocalyptic number.

1393379814 is an abundant number, since it is smaller than the sum of its proper divisors (1410303642).

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

1393379814 is a wasteful number, since it uses less digits than its factorization.

1393379814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180.

The product of its digits is 489888, while the sum is 48.

The square root of 1393379814 is about 37328.0030807971. The cubic root of 1393379814 is about 1116.9228389578.

The spelling of 1393379814 in words is "one billion, three hundred ninety-three million, three hundred seventy-nine thousand, eight hundred fourteen".