1390277930 has 8 divisors (see below), whose sum is σ = 2502500292. Its totient is φ = 556111168.

The previous prime is 1390277929. The next prime is 1390277953. The reversal of 1390277930 is 397720931.

It can be written as a sum of positive squares in 2 ways, for example, as 1299818809 + 90459121 = 36053^2 + 9511^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69513887 + ... + 69513906.

Almost surely, 2^1390277930 is an apocalyptic number.

1390277930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1390277930 is a deficient number, since it is larger than the sum of its proper divisors (1112222362).

1390277930 is a wasteful number, since it uses less digits than its factorization.

1390277930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139027800.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 1390277930 is about 37286.4309099168. The cubic root of 1390277930 is about 1116.0934074984.

The spelling of 1390277930 in words is "one billion, three hundred ninety million, two hundred seventy-seven thousand, nine hundred thirty".