1397815404 has 12 divisors (see below), whose sum is σ = 3261569304. Its totient is φ = 465938464.

The previous prime is 1397815403. The next prime is 1397815459. The reversal of 1397815404 is 4045187931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1397815403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58242297 + ... + 58242320.

It is an arithmetic number, because the mean of its divisors is an integer number (271797442).

Almost surely, 2^1397815404 is an apocalyptic number.

It is an amenable number.

1397815404 is an abundant number, since it is smaller than the sum of its proper divisors (1863753900).

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

1397815404 is a wasteful number, since it uses less digits than its factorization.

1397815404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116484624 (or 116484622 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1397815404 is about 37387.3695785087. The cubic root of 1397815404 is about 1118.1067621630.

The spelling of 1397815404 in words is "one billion, three hundred ninety-seven million, eight hundred fifteen thousand, four hundred four".