306988472 has 64 divisors (see below), whose sum is σ = 699072000. Its totient is φ = 123451776.

The previous prime is 306988459. The next prime is 306988483. The reversal of 306988472 is 274889603.

306988472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114653 + ... + 117299.

It is an arithmetic number, because the mean of its divisors is an integer number (10923000).

Almost surely, 2^306988472 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 306988472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349536000).

306988472 is an abundant number, since it is smaller than the sum of its proper divisors (392083528).

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

306988472 is a wasteful number, since it uses less digits than its factorization.

306988472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788 (or 2784 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 306988472 is about 17521.0864959911. The cubic root of 306988472 is about 674.5912272158.

The spelling of 306988472 in words is "three hundred six million, nine hundred eighty-eight thousand, four hundred seventy-two".