1379017772 has 24 divisors (see below), whose sum is σ = 2633616720. Its totient is φ = 626600960.

The previous prime is 1379017771. The next prime is 1379017799. The reversal of 1379017772 is 2777109731.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (1379017771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217268 + ... + 223524.

It is an arithmetic number, because the mean of its divisors is an integer number (109734030).

Almost surely, 2^1379017772 is an apocalyptic number.

It is an amenable number.

1379017772 is a deficient number, since it is larger than the sum of its proper divisors (1254598948).

1379017772 is a wasteful number, since it uses less digits than its factorization.

1379017772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11281 (or 11279 counting only the distinct ones).

The product of its (nonzero) digits is 129654, while the sum is 44.

The square root of 1379017772 is about 37135.1285442773. The cubic root of 1379017772 is about 1113.0720762987.

The spelling of 1379017772 in words is "one billion, three hundred seventy-nine million, seventeen thousand, seven hundred seventy-two".