345318402 has 64 divisors (see below), whose sum is σ = 823624704. Its totient is φ = 95135040.

The previous prime is 345318329. The next prime is 345318403. The reversal of 345318402 is 204813543.

It is a self number, because there is not a number n which added to its sum of digits gives 345318402.

It is not an unprimeable number, because it can be changed into a prime (345318403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54483 + ... + 60489.

It is an arithmetic number, because the mean of its divisors is an integer number (12869136).

Almost surely, 2^345318402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345318402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411812352).

345318402 is an abundant number, since it is smaller than the sum of its proper divisors (478306302).

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

345318402 is a wasteful number, since it uses less digits than its factorization.

345318402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6103.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 345318402 is about 18582.7447380628. The cubic root of 345318402 is about 701.5736040957.

The spelling of 345318402 in words is "three hundred forty-five million, three hundred eighteen thousand, four hundred two".