305512472 has 16 divisors (see below), whose sum is σ = 576268560. Its totient is φ = 151840864.

The previous prime is 305512451. The next prime is 305512483. The reversal of 305512472 is 274215503.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113003 + ... + 115674.

It is an arithmetic number, because the mean of its divisors is an integer number (36016785).

Almost surely, 2^305512472 is an apocalyptic number.

It is an amenable number.

305512472 is a deficient number, since it is larger than the sum of its proper divisors (270756088).

305512472 is a wasteful number, since it uses less digits than its factorization.

305512472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228850 (or 228846 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 305512472 is about 17478.9150693056. The cubic root of 305512472 is about 673.5083454056.

Adding to 305512472 its reverse (274215503), we get a palindrome (579727975).

The spelling of 305512472 in words is "three hundred five million, five hundred twelve thousand, four hundred seventy-two".