345768690 has 16 divisors (see below), whose sum is σ = 829844928. Its totient is φ = 92204976.

The previous prime is 345768673. The next prime is 345768691. The reversal of 345768690 is 96867543.

It is a super-2 number, since 2×345768690² = 239111973968632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345768691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5762782 + ... + 5762841.

It is an arithmetic number, because the mean of its divisors is an integer number (51865308).

Almost surely, 2^345768690 is an apocalyptic number.

345768690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

345768690 is an abundant number, since it is smaller than the sum of its proper divisors (484076238).

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

345768690 is a wasteful number, since it uses less digits than its factorization.

345768690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11525633.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 345768690 is about 18594.8565469057. The cubic root of 345768690 is about 701.8784174305.

The spelling of 345768690 in words is "three hundred forty-five million, seven hundred sixty-eight thousand, six hundred ninety".