345127690 has 16 divisors (see below), whose sum is σ = 624355200. Its totient is φ = 137356560.

The previous prime is 345127669. The next prime is 345127733. The reversal of 345127690 is 96721543.

It is a super-2 number, since 2×345127690² = 238226244809472200, which contains 22 as substring.

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, 84726 + ... + 88705.

It is an arithmetic number, because the mean of its divisors is an integer number (39022200).

Almost surely, 2^345127690 is an apocalyptic number.

345127690 is a deficient number, since it is larger than the sum of its proper divisors (279227510).

345127690 is a wasteful number, since it uses less digits than its factorization.

345127690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173637.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 345127690 is about 18577.6126022694. The cubic root of 345127690 is about 701.4444255914. Note that the first 4 decimals are identical.

The spelling of 345127690 in words is "three hundred forty-five million, one hundred twenty-seven thousand, six hundred ninety".