397982743254 has 40 divisors (see below), whose sum is σ = 887434884120. Its totient is φ = 132208146792.

The previous prime is 397982743247. The next prime is 397982743261. The reversal of 397982743254 is 452347289793.

397982743254 is a `hidden beast` number, since 3 + 9 + 79 + 82 + 7 + 432 + 54 = 666.

It is an interprime number because it is at equal distance from previous prime (397982743247) and next prime (397982743261).

It is a junction number, because it is equal to n+sod(n) for n = 397982743191 and 397982743200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1358302732 + ... + 1358303024.

It is an arithmetic number, because the mean of its divisors is an integer number (22185872103).

Almost surely, 2^397982743254 is an apocalyptic number.

397982743254 is an abundant number, since it is smaller than the sum of its proper divisors (489452140866).

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

397982743254 is an frugal number, since it uses more digits than its factorization.

397982743254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183 (or 298 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 397982743254 in words is "three hundred ninety-seven billion, nine hundred eighty-two million, seven hundred forty-three thousand, two hundred fifty-four".