1379825290 has 32 divisors (see below), whose sum is σ = 2501072640. Its totient is φ = 548081664.

The previous prime is 1379825243. The next prime is 1379825311. The reversal of 1379825290 is 925289731.

It is a self number, because there is not a number n which added to its sum of digits gives 1379825290.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1127619 + ... + 1128841.

It is an arithmetic number, because the mean of its divisors is an integer number (78158520).

Almost surely, 2^1379825290 is an apocalyptic number.

1379825290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1379825290 is a deficient number, since it is larger than the sum of its proper divisors (1121247350).

1379825290 is a wasteful number, since it uses less digits than its factorization.

1379825290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1379825290 is about 37145.9996500296. Note that the first 3 decimals coincide. The cubic root of 1379825290 is about 1113.2892962092.

The spelling of 1379825290 in words is "one billion, three hundred seventy-nine million, eight hundred twenty-five thousand, two hundred ninety".