345503508 has 72 divisors (see below), whose sum is σ = 941933664. Its totient is φ = 98280000.

The previous prime is 345503503. The next prime is 345503531. The reversal of 345503508 is 805305543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345503503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146418 + ... + 148758.

It is an arithmetic number, because the mean of its divisors is an integer number (13082412).

Almost surely, 2^345503508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345503508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470966832).

345503508 is an abundant number, since it is smaller than the sum of its proper divisors (596430156).

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

345503508 is a wasteful number, since it uses less digits than its factorization.

345503508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613 (or 2604 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 345503508 is about 18587.7246590324. The cubic root of 345503508 is about 701.6989399067.

The spelling of 345503508 in words is "three hundred forty-five million, five hundred three thousand, five hundred eight".