1397805354 has 24 divisors (see below), whose sum is σ = 3303904032. Its totient is φ = 423577320.

The previous prime is 1397805349. The next prime is 1397805371. The reversal of 1397805354 is 4535087931.

1397805354 is a `hidden beast` number, since 1 + 39 + 7 + 80 + 535 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3529614 + ... + 3530009.

It is an arithmetic number, because the mean of its divisors is an integer number (137662668).

Almost surely, 2^1397805354 is an apocalyptic number.

1397805354 is an abundant number, since it is smaller than the sum of its proper divisors (1906098678).

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

1397805354 is a wasteful number, since it uses less digits than its factorization.

1397805354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7059642 (or 7059639 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 1397805354 is about 37387.2351745887. The cubic root of 1397805354 is about 1118.1040825054.

The spelling of 1397805354 in words is "one billion, three hundred ninety-seven million, eight hundred five thousand, three hundred fifty-four".