345788642 has 8 divisors (see below), whose sum is σ = 528469596. Its totient is φ = 169632112.

The previous prime is 345788627. The next prime is 345788659. The reversal of 345788642 is 246887543.

It can be written as a sum of positive squares in 2 ways, for example, as 303421561 + 42367081 = 17419^2 + 6509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1630973 + ... + 1631184.

Almost surely, 2^345788642 is an apocalyptic number.

345788642 is a deficient number, since it is larger than the sum of its proper divisors (182680954).

345788642 is a wasteful number, since it uses less digits than its factorization.

345788642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262212.

The product of its digits is 1290240, while the sum is 47.

The square root of 345788642 is about 18595.3930316087. The cubic root of 345788642 is about 701.8919174082.

The spelling of 345788642 in words is "three hundred forty-five million, seven hundred eighty-eight thousand, six hundred forty-two".