345245672 has 16 divisors (see below), whose sum is σ = 647589060. Its totient is φ = 172555264.

The previous prime is 345245647. The next prime is 345245683. The reversal of 345245672 is 276542543.

It can be written as a sum of positive squares in 2 ways, for example, as 342768196 + 2477476 = 18514^2 + 1574^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18218 + ... + 31974.

Almost surely, 2^345245672 is an apocalyptic number.

It is an amenable number.

345245672 is a deficient number, since it is larger than the sum of its proper divisors (302343388).

345245672 is a wasteful number, since it uses less digits than its factorization.

345245672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16900 (or 16896 counting only the distinct ones).

The product of its digits is 201600, while the sum is 38.

The square root of 345245672 is about 18580.7877120428. The cubic root of 345245672 is about 701.5243461446.

The spelling of 345245672 in words is "three hundred forty-five million, two hundred forty-five thousand, six hundred seventy-two".