345869390 has 16 divisors (see below), whose sum is σ = 632772000. Its totient is φ = 136079520.

The previous prime is 345869371. The next prime is 345869417. The reversal of 345869390 is 93968543.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282890 + ... + 284109.

It is an arithmetic number, because the mean of its divisors is an integer number (39548250).

Almost surely, 2^345869390 is an apocalyptic number.

345869390 is a deficient number, since it is larger than the sum of its proper divisors (286902610).

345869390 is a wasteful number, since it uses less digits than its factorization.

345869390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567067.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 345869390 is about 18597.5640878046. The cubic root of 345869390 is about 701.9465480415.

The spelling of 345869390 in words is "three hundred forty-five million, eight hundred sixty-nine thousand, three hundred ninety".