345311440402 has 32 divisors (see below), whose sum is σ = 539526144960. Its totient is φ = 165619157760.

The previous prime is 345311440399. The next prime is 345311440477. The reversal of 345311440402 is 204044113543.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5208502 + ... + 5274382.

It is an arithmetic number, because the mean of its divisors is an integer number (16860192030).

Almost surely, 2^345311440402 is an apocalyptic number.

345311440402 is a deficient number, since it is larger than the sum of its proper divisors (194214704558).

345311440402 is a wasteful number, since it uses less digits than its factorization.

345311440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67018.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 345311440402 its reverse (204044113543), we get a palindrome (549355553945).

The spelling of 345311440402 in words is "three hundred forty-five billion, three hundred eleven million, four hundred forty thousand, four hundred two".