345590238 has 48 divisors (see below), whose sum is σ = 805574160. Its totient is φ = 98550144.

The previous prime is 345590237. The next prime is 345590251. The reversal of 345590238 is 832095543.

It is a super-2 number, since 2×345590238² = 238865225201793288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345590196 and 345590205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345590237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237120 + ... + 238572.

It is an arithmetic number, because the mean of its divisors is an integer number (16782795).

Almost surely, 2^345590238 is an apocalyptic number.

345590238 is an abundant number, since it is smaller than the sum of its proper divisors (459983922).

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

345590238 is a wasteful number, since it uses less digits than its factorization.

345590238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281 (or 2274 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 345590238 is about 18590.0575039455. The cubic root of 345590238 is about 701.7576496410.

The spelling of 345590238 in words is "three hundred forty-five million, five hundred ninety thousand, two hundred thirty-eight".