345249252 has 18 divisors (see below), whose sum is σ = 872713478. Its totient is φ = 115083072.

The previous prime is 345249227. The next prime is 345249253. The reversal of 345249252 is 252942543.

345249252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 345067776 + 181476 = 18576^2 + 426^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 9590257 = 345249252 / (3 + 4 + 5 + 2 + 4 + 9 + 2 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (345249253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4795093 + ... + 4795164.

Almost surely, 2^345249252 is an apocalyptic number.

It is an amenable number.

345249252 is an abundant number, since it is smaller than the sum of its proper divisors (527464226).

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

345249252 is a wasteful number, since it uses less digits than its factorization.

345249252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9590267 (or 9590262 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 345249252 is about 18580.8840478595. The cubic root of 345249252 is about 701.5267709382.

The spelling of 345249252 in words is "three hundred forty-five million, two hundred forty-nine thousand, two hundred fifty-two".