397340262 has 128 divisors (see below), whose sum is σ = 1004659200. Its totient is φ = 115344000.

The previous prime is 397340231. The next prime is 397340291. The reversal of 397340262 is 262043793.

It is a happy number.

397340262 is a `hidden beast` number, since 397 + 3 + 4 + 0 + 262 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2219689 + ... + 2219867.

It is an arithmetic number, because the mean of its divisors is an integer number (7848900).

Almost surely, 2^397340262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397340262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502329600).

397340262 is an abundant number, since it is smaller than the sum of its proper divisors (607318938).

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

397340262 is a wasteful number, since it uses less digits than its factorization.

397340262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 397340262 is about 19933.3956465024. The cubic root of 397340262 is about 735.1695735357.

The spelling of 397340262 in words is "three hundred ninety-seven million, three hundred forty thousand, two hundred sixty-two".