345031404 has 12 divisors (see below), whose sum is σ = 805073304. Its totient is φ = 115010464.

The previous prime is 345031399. The next prime is 345031411. The reversal of 345031404 is 404130543.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×345031404² = 238093339492422432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14376297 + ... + 14376320.

It is an arithmetic number, because the mean of its divisors is an integer number (67089442).

Almost surely, 2^345031404 is an apocalyptic number.

It is an amenable number.

345031404 is an abundant number, since it is smaller than the sum of its proper divisors (460041900).

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

345031404 is a wasteful number, since it uses less digits than its factorization.

345031404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28752624 (or 28752622 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 345031404 is about 18575.0209690326. The cubic root of 345031404 is about 701.3791883263.

Adding to 345031404 its reverse (404130543), we get a palindrome (749161947).

The spelling of 345031404 in words is "three hundred forty-five million, thirty-one thousand, four hundred four".