30628472 has 16 divisors (see below), whose sum is σ = 65632560. Its totient is φ = 13126464.

The previous prime is 30628471. The next prime is 30628519. The reversal of 30628472 is 27482603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30628471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273413 + ... + 273524.

It is an arithmetic number, because the mean of its divisors is an integer number (4102035).

Almost surely, 2^30628472 is an apocalyptic number.

It is an amenable number.

30628472 is an abundant number, since it is smaller than the sum of its proper divisors (35004088).

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

30628472 is a wasteful number, since it uses less digits than its factorization.

30628472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546950 (or 546946 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 30628472 is about 5534.2995943480. The cubic root of 30628472 is about 312.8780602011.

The spelling of 30628472 in words is "thirty million, six hundred twenty-eight thousand, four hundred seventy-two".