1397948568 has 32 divisors (see below), whose sum is σ = 3547037760. Its totient is φ = 459027360.

The previous prime is 1397948551. The next prime is 1397948569. The reversal of 1397948568 is 8658497931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397948569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433078 + ... + 436293.

It is an arithmetic number, because the mean of its divisors is an integer number (110844930).

Almost surely, 2^1397948568 is an apocalyptic number.

It is an amenable number.

1397948568 is an abundant number, since it is smaller than the sum of its proper divisors (2149089192).

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

1397948568 is a wasteful number, since it uses less digits than its factorization.

1397948568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869447 (or 869443 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 60.

The square root of 1397948568 is about 37389.1504048969. The cubic root of 1397948568 is about 1118.1422668132.

The spelling of 1397948568 in words is "one billion, three hundred ninety-seven million, nine hundred forty-eight thousand, five hundred sixty-eight".