1379497276 has 12 divisors (see below), whose sum is σ = 2470262872. Its totient is φ = 673707888.

The previous prime is 1379497271. The next prime is 1379497291. The reversal of 1379497276 is 6727949731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379497271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4009995 + ... + 4010338.

Almost surely, 2^1379497276 is an apocalyptic number.

It is an amenable number.

1379497276 is a deficient number, since it is larger than the sum of its proper divisors (1090765596).

1379497276 is a wasteful number, since it uses less digits than its factorization.

1379497276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8020380 (or 8020378 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 55.

The square root of 1379497276 is about 37141.5841880768. The cubic root of 1379497276 is about 1113.2010716544.

The spelling of 1379497276 in words is "one billion, three hundred seventy-nine million, four hundred ninety-seven thousand, two hundred seventy-six".