1379501949 has 24 divisors (see below), whose sum is σ = 2191831488. Its totient is φ = 769056960.

The previous prime is 1379501947. The next prime is 1379501971. The reversal of 1379501949 is 9491059731.

It is not a de Polignac number, because 1379501949 - 2¹ = 1379501947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1379501898 and 1379501907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379501947) 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 23 ways as a sum of consecutive naturals, for example, 108417 + ... + 120470.

It is an arithmetic number, because the mean of its divisors is an integer number (91326312).

Almost surely, 2^1379501949 is an apocalyptic number.

It is an amenable number.

1379501949 is a deficient number, since it is larger than the sum of its proper divisors (812329539).

1379501949 is a wasteful number, since it uses less digits than its factorization.

1379501949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228945 (or 228938 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 1379501949 is about 37141.6470959488. The cubic root of 1379501949 is about 1113.2023286299.

The spelling of 1379501949 in words is "one billion, three hundred seventy-nine million, five hundred one thousand, nine hundred forty-nine".