305013232 has 30 divisors (see below), whose sum is σ = 623715288. Its totient is φ = 144477216.

The previous prime is 305013211. The next prime is 305013239. The reversal of 305013232 is 232310503.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305013239) 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, 20628 + ... + 32179.

Almost surely, 2^305013232 is an apocalyptic number.

It is an amenable number.

305013232 is an abundant number, since it is smaller than the sum of its proper divisors (318702056).

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

305013232 is a wasteful number, since it uses less digits than its factorization.

305013232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52853 (or 52828 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 305013232 is about 17464.6280235223. The cubic root of 305013232 is about 673.1412838772.

Adding to 305013232 its reverse (232310503), we get a palindrome (537323735).

It can be divided in two parts, 30501 and 3232, that added together give a palindrome (33733).

The spelling of 305013232 in words is "three hundred five million, thirteen thousand, two hundred thirty-two".