345997392 has 80 divisors (see below), whose sum is σ = 971604480. Its totient is φ = 105463296.

The previous prime is 345997367. The next prime is 345997427. The reversal of 345997392 is 293799543.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 65473 + ... + 70559.

It is an arithmetic number, because the mean of its divisors is an integer number (12145056).

Almost surely, 2^345997392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345997392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485802240).

345997392 is an abundant number, since it is smaller than the sum of its proper divisors (625607088).

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

345997392 is a wasteful number, since it uses less digits than its factorization.

345997392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220 (or 5214 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 51.

The square root of 345997392 is about 18601.0051341319. The cubic root of 345997392 is about 702.0331312843.

The spelling of 345997392 in words is "three hundred forty-five million, nine hundred ninety-seven thousand, three hundred ninety-two".