1397839530 has 16 divisors (see below), whose sum is σ = 3354814944. Its totient is φ = 372757200.

The previous prime is 1397839529. The next prime is 1397839537. The reversal of 1397839530 is 359387931.

It is a self number, because there is not a number n which added to its sum of digits gives 1397839530.

It is not an unprimeable number, because it can be changed into a prime (1397839537) 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, 23297296 + ... + 23297355.

It is an arithmetic number, because the mean of its divisors is an integer number (209675934).

Almost surely, 2^1397839530 is an apocalyptic number.

1397839530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1397839530 is an abundant number, since it is smaller than the sum of its proper divisors (1956975414).

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

1397839530 is a wasteful number, since it uses less digits than its factorization.

1397839530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46594661.

The product of its (nonzero) digits is 612360, while the sum is 48.

The square root of 1397839530 is about 37387.6922261859. The cubic root of 1397839530 is about 1118.1131948885.

The spelling of 1397839530 in words is "one billion, three hundred ninety-seven million, eight hundred thirty-nine thousand, five hundred thirty".