345774239 has 4 divisors (see below), whose sum is σ = 345811440. Its totient is φ = 345737040.

The previous prime is 345774229. The next prime is 345774259. The reversal of 345774239 is 932477543.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 932477543 = 12763 ⋅73061.

It is a cyclic number.

It is not a de Polignac number, because 345774239 - 2⁸ = 345773983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345774239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345774229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8654 + ... + 27684.

It is an arithmetic number, because the mean of its divisors is an integer number (86452860).

Almost surely, 2^345774239 is an apocalyptic number.

345774239 is a deficient number, since it is larger than the sum of its proper divisors (37201).

345774239 is a wasteful number, since it uses less digits than its factorization.

345774239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37200.

The product of its digits is 635040, while the sum is 44.

The square root of 345774239 is about 18595.0057542341. The cubic root of 345774239 is about 701.8821720624.

The spelling of 345774239 in words is "three hundred forty-five million, seven hundred seventy-four thousand, two hundred thirty-nine".