1379939200 has 96 divisors (see below), whose sum is σ = 3467133000. Its totient is φ = 542545920.

The previous prime is 1379939191. The next prime is 1379939207. The reversal of 1379939200 is 29399731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379939207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185146 + ... + 192454.

Almost surely, 2^1379939200 is an apocalyptic number.

1379939200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1379939200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1733566500).

1379939200 is an abundant number, since it is smaller than the sum of its proper divisors (2087193800).

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

1379939200 is an equidigital number, since it uses as much as digits as its factorization.

1379939200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7392 (or 7375 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 1379939200 is about 37147.5328925085. The cubic root of 1379939200 is about 1113.3199308349.

The spelling of 1379939200 in words is "one billion, three hundred seventy-nine million, nine hundred thirty-nine thousand, two hundred".