345990530 has 8 divisors (see below), whose sum is σ = 622782972. Its totient is φ = 138396208.

The previous prime is 345990529. The next prime is 345990553. The reversal of 345990530 is 35099543.

It can be written as a sum of positive squares in 2 ways, for example, as 343323841 + 2666689 = 18529^2 + 1633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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, 17299517 + ... + 17299536.

Almost surely, 2^345990530 is an apocalyptic number.

345990530 is a deficient number, since it is larger than the sum of its proper divisors (276792442).

345990530 is a wasteful number, since it uses less digits than its factorization.

345990530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34599060.

The product of its (nonzero) digits is 72900, while the sum is 38.

The square root of 345990530 is about 18600.8206808194. The cubic root of 345990530 is about 702.0284902250.

The spelling of 345990530 in words is "three hundred forty-five million, nine hundred ninety thousand, five hundred thirty".