345233140 has 24 divisors (see below), whose sum is σ = 828559872. Its totient is φ = 118365600.

The previous prime is 345233137. The next prime is 345233153. The reversal of 345233140 is 41332543.

It is a congruent number.

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, 1232836 + ... + 1233115.

It is an arithmetic number, because the mean of its divisors is an integer number (34523328).

Almost surely, 2^345233140 is an apocalyptic number.

It is an amenable number.

345233140 is an abundant number, since it is smaller than the sum of its proper divisors (483326732).

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

345233140 is a wasteful number, since it uses less digits than its factorization.

345233140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465967 (or 2465965 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 345233140 is about 18580.4504789308. The cubic root of 345233140 is about 701.5158578803.

Adding to 345233140 its reverse (41332543), we get a palindrome (386565683).

The spelling of 345233140 in words is "three hundred forty-five million, two hundred thirty-three thousand, one hundred forty".