345503232 has 120 divisors (see below), whose sum is σ = 1034449416. Its totient is φ = 115126272.

The previous prime is 345503219. The next prime is 345503267. The reversal of 345503232 is 232305543.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 345503196 and 345503205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123028 + ... + 125804.

Almost surely, 2^345503232 is an apocalyptic number.

345503232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345503232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517224708).

345503232 is an abundant number, since it is smaller than the sum of its proper divisors (688946184).

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

345503232 is an frugal number, since it uses more digits than its factorization.

345503232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810 (or 2782 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 345503232 is about 18587.7172347763. The cubic root of 345503232 is about 701.6987530597.

Adding to 345503232 its reverse (232305543), we get a palindrome (577808775).

The spelling of 345503232 in words is "three hundred forty-five million, five hundred three thousand, two hundred thirty-two".