345400021224 has 96 divisors (see below), whose sum is σ = 938611614720. Its totient is φ = 114745673088.

The previous prime is 345400021207. The next prime is 345400021243. The reversal of 345400021224 is 422120004543.

345400021224 is a `hidden beast` number, since 3 + 45 + 400 + 0 + 212 + 2 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54245289 + ... + 54251655.

It is an arithmetic number, because the mean of its divisors is an integer number (9777204320).

Almost surely, 2^345400021224 is an apocalyptic number.

It is an amenable number.

345400021224 is an abundant number, since it is smaller than the sum of its proper divisors (593211593496).

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

345400021224 is a wasteful number, since it uses less digits than its factorization.

345400021224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8799 (or 8792 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 345400021224 its reverse (422120004543), we get a palindrome (767520025767).

The spelling of 345400021224 in words is "three hundred forty-five billion, four hundred million, twenty-one thousand, two hundred twenty-four".