1379145924 has 144 divisors (see below), whose sum is σ = 3908224320. Its totient is φ = 407151360.

The previous prime is 1379145919. The next prime is 1379145973. The reversal of 1379145924 is 4295419731.

It is a self number, because there is not a number n which added to its sum of digits gives 1379145924.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 4166439 + ... + 4166769.

Almost surely, 2^1379145924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1379145924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1954112160).

1379145924 is an abundant number, since it is smaller than the sum of its proper divisors (2529078396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1379145924 is a wasteful number, since it uses less digits than its factorization.

1379145924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 685 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 1379145924 is about 37136.8539863031. The cubic root of 1379145924 is about 1113.1065544607.

The spelling of 1379145924 in words is "one billion, three hundred seventy-nine million, one hundred forty-five thousand, nine hundred twenty-four".