1379478290 has 8 divisors (see below), whose sum is σ = 2483060940. Its totient is φ = 551791312.

The previous prime is 1379478259. The next prime is 1379478307. The reversal of 1379478290 is 928749731.

1379478290 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1262167729 + 117310561 = 35527^2 + 10831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 68973905 + ... + 68973924.

Almost surely, 2^1379478290 is an apocalyptic number.

1379478290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1379478290 is a deficient number, since it is larger than the sum of its proper divisors (1103582650).

1379478290 is a wasteful number, since it uses less digits than its factorization.

1379478290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137947836.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 1379478290 is about 37141.3285976687. The cubic root of 1379478290 is about 1113.1959646412.

The spelling of 1379478290 in words is "one billion, three hundred seventy-nine million, four hundred seventy-eight thousand, two hundred ninety".