1390048580 has 24 divisors (see below), whose sum is σ = 2940415128. Its totient is φ = 551959808.

The previous prime is 1390048519. The next prime is 1390048589. The reversal of 1390048580 is 858400931.

It can be written as a sum of positive squares in 4 ways, for example, as 70324996 + 1319723584 = 8386^2 + 36328^2 .

It is not an unprimeable number, because it can be changed into a prime (1390048589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250919 + ... + 256398.

It is an arithmetic number, because the mean of its divisors is an integer number (122517297).

Almost surely, 2^1390048580 is an apocalyptic number.

1390048580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390048580 is an abundant number, since it is smaller than the sum of its proper divisors (1550366548).

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

1390048580 is a wasteful number, since it uses less digits than its factorization.

1390048580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507463 (or 507461 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1390048580 is about 37283.3552674649. The cubic root of 1390048580 is about 1116.0320312573.

The spelling of 1390048580 in words is "one billion, three hundred ninety million, forty-eight thousand, five hundred eighty".