345389888 has 14 divisors (see below), whose sum is σ = 685383186. Its totient is φ = 172694912.

The previous prime is 345389881. The next prime is 345389899. The reversal of 345389888 is 888983543.

It can be written as a sum of positive squares in only one way, i.e., 177635584 + 167754304 = 13328^2 + 12952^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345389881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2698295 + ... + 2698422.

Almost surely, 2^345389888 is an apocalyptic number.

It is an amenable number.

345389888 is a deficient number, since it is larger than the sum of its proper divisors (339993298).

345389888 is an equidigital number, since it uses as much as digits as its factorization.

345389888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5396729 (or 5396719 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 56.

The square root of 345389888 is about 18584.6680895840. The cubic root of 345389888 is about 701.6220127817.

The spelling of 345389888 in words is "three hundred forty-five million, three hundred eighty-nine thousand, eight hundred eighty-eight".