345031604 has 6 divisors (see below), whose sum is σ = 603805314. Its totient is φ = 172515800.

The previous prime is 345031597. The next prime is 345031639. The reversal of 345031604 is 406130543.

It can be written as a sum of positive squares in only one way, i.e., 182520100 + 162511504 = 13510^2 + 12748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43128947 + ... + 43128954.

It is an arithmetic number, because the mean of its divisors is an integer number (100634219).

Almost surely, 2^345031604 is an apocalyptic number.

It is an amenable number.

345031604 is a deficient number, since it is larger than the sum of its proper divisors (258773710).

345031604 is a wasteful number, since it uses less digits than its factorization.

345031604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86257905 (or 86257903 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 345031604 is about 18575.0263526058. The cubic root of 345031604 is about 701.3793238461.

The spelling of 345031604 in words is "three hundred forty-five million, thirty-one thousand, six hundred four".