345156804 has 18 divisors (see below), whose sum is σ = 872479790. Its totient is φ = 115052256.

The previous prime is 345156781. The next prime is 345156809. The reversal of 345156804 is 408651543.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 344176704 + 980100 = 18552^2 + 990^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 9587689 = 345156804 / (3 + 4 + 5 + 1 + 5 + 6 + 8 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (345156809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4793809 + ... + 4793880.

Almost surely, 2^345156804 is an apocalyptic number.

It is an amenable number.

345156804 is an abundant number, since it is smaller than the sum of its proper divisors (527322986).

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

345156804 is a wasteful number, since it uses less digits than its factorization.

345156804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9587699 (or 9587694 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 345156804 is about 18578.3961632860. The cubic root of 345156804 is about 701.4641489956.

The spelling of 345156804 in words is "three hundred forty-five million, one hundred fifty-six thousand, eight hundred four".