345997370 has 32 divisors (see below), whose sum is σ = 635763600. Its totient is φ = 135544320.

The previous prime is 345997367. The next prime is 345997427. The reversal of 345997370 is 73799543.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 25694761 + 320302609 = 5069^2 + 17897^2 .

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 15 ways as a sum of consecutive naturals, for example, 107180 + ... + 110360.

Almost surely, 2^345997370 is an apocalyptic number.

345997370 is a deficient number, since it is larger than the sum of its proper divisors (289766230).

345997370 is a wasteful number, since it uses less digits than its factorization.

345997370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410.

The product of its (nonzero) digits is 714420, while the sum is 47.

The square root of 345997370 is about 18601.0045427660. The cubic root of 345997370 is about 702.0331164048.

The spelling of 345997370 in words is "three hundred forty-five million, nine hundred ninety-seven thousand, three hundred seventy".