345226540 has 24 divisors (see below), whose sum is σ = 748363392. Its totient is φ = 133635840.

The previous prime is 345226529. The next prime is 345226591. The reversal of 345226540 is 45622543.

345226540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277789 + ... + 279028.

It is an arithmetic number, because the mean of its divisors is an integer number (31181808).

Almost surely, 2^345226540 is an apocalyptic number.

It is an amenable number.

345226540 is an abundant number, since it is smaller than the sum of its proper divisors (403136852).

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

345226540 is a wasteful number, since it uses less digits than its factorization.

345226540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556857 (or 556855 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 345226540 is about 18580.2728720544. The cubic root of 345226540 is about 701.5113874383.

It can be divided in two parts, 3452 and 26540, that added together give a palindrome (29992).

The spelling of 345226540 in words is "three hundred forty-five million, two hundred twenty-six thousand, five hundred forty".