1379939038 has 4 divisors (see below), whose sum is σ = 2069908560. Its totient is φ = 689969518.

The previous prime is 1379939017. The next prime is 1379939039. The reversal of 1379939038 is 8309399731.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379939039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344984758 + ... + 344984761.

It is an arithmetic number, because the mean of its divisors is an integer number (517477140).

Almost surely, 2^1379939038 is an apocalyptic number.

1379939038 is a deficient number, since it is larger than the sum of its proper divisors (689969522).

1379939038 is an equidigital number, since it uses as much as digits as its factorization.

1379939038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689969521.

The product of its (nonzero) digits is 1102248, while the sum is 52.

The square root of 1379939038 is about 37147.5307120137. The cubic root of 1379939038 is about 1113.3198872683.

The spelling of 1379939038 in words is "one billion, three hundred seventy-nine million, nine hundred thirty-nine thousand, thirty-eight".