1379426277 has 8 divisors (see below), whose sum is σ = 1936036960. Its totient is φ = 871216560.

The previous prime is 1379426273. The next prime is 1379426297. The reversal of 1379426277 is 7726249731.

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

It is not a de Polignac number, because 1379426277 - 2² = 1379426273 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379426273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12100174 + ... + 12100287.

It is an arithmetic number, because the mean of its divisors is an integer number (242004620).

Almost surely, 2^1379426277 is an apocalyptic number.

It is an amenable number.

1379426277 is a deficient number, since it is larger than the sum of its proper divisors (556610683).

1379426277 is a wasteful number, since it uses less digits than its factorization.

1379426277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24200483.

The product of its digits is 889056, while the sum is 48.

The square root of 1379426277 is about 37140.6283872527. The cubic root of 1379426277 is about 1113.1819735090.

The spelling of 1379426277 in words is "one billion, three hundred seventy-nine million, four hundred twenty-six thousand, two hundred seventy-seven".