345323445402 has 16 divisors (see below), whose sum is σ = 743773574880. Its totient is φ = 106253367792.

The previous prime is 345323445373. The next prime is 345323445407. The reversal of 345323445402 is 204544323543.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (345323445407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2213611752 + ... + 2213611907.

It is an arithmetic number, because the mean of its divisors is an integer number (46485848430).

Almost surely, 2^345323445402 is an apocalyptic number.

345323445402 is an abundant number, since it is smaller than the sum of its proper divisors (398450129478).

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

345323445402 is a wasteful number, since it uses less digits than its factorization.

345323445402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427223677.

The product of its (nonzero) digits is 691200, while the sum is 39.

Adding to 345323445402 its reverse (204544323543), we get a palindrome (549867768945).

The spelling of 345323445402 in words is "three hundred forty-five billion, three hundred twenty-three million, four hundred forty-five thousand, four hundred two".