1379994746 has 8 divisors (see below), whose sum is σ = 2229222324. Its totient is φ = 636920640.

The previous prime is 1379994731. The next prime is 1379994773. The reversal of 1379994746 is 6474999731.

It can be written as a sum of positive squares in 2 ways, for example, as 1373517721 + 6477025 = 37061^2 + 2545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26538335 + ... + 26538386.

Almost surely, 2^1379994746 is an apocalyptic number.

1379994746 is a deficient number, since it is larger than the sum of its proper divisors (849227578).

1379994746 is a wasteful number, since it uses less digits than its factorization.

1379994746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53076736.

The product of its digits is 10287648, while the sum is 59.

The square root of 1379994746 is about 37148.2805254833. The cubic root of 1379994746 is about 1113.3348686040.

The spelling of 1379994746 in words is "one billion, three hundred seventy-nine million, nine hundred ninety-four thousand, seven hundred forty-six".