345749669 has 16 divisors (see below), whose sum is σ = 368323200. Its totient is φ = 323643456.

The previous prime is 345749641. The next prime is 345749671. The reversal of 345749669 is 966947543.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345749669 is a prime.

It is a super-2 number, since 2×345749669² = 239085667227219122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 345749669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345749609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 962912 + ... + 963270.

It is an arithmetic number, because the mean of its divisors is an integer number (23020200).

Almost surely, 2^345749669 is an apocalyptic number.

It is an amenable number.

345749669 is a deficient number, since it is larger than the sum of its proper divisors (22573531).

345749669 is a wasteful number, since it uses less digits than its factorization.

345749669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844.

The product of its digits is 4898880, while the sum is 53.

The square root of 345749669 is about 18594.3450812337. The cubic root of 345749669 is about 701.8655469050.

The spelling of 345749669 in words is "three hundred forty-five million, seven hundred forty-nine thousand, six hundred sixty-nine".