30450672 has 120 divisors (see below), whose sum is σ = 103180896. Its totient is φ = 8183808.

The previous prime is 30450671. The next prime is 30450697. The reversal of 30450672 is 27605403.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30450671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16248 + ... + 18024.

Almost surely, 2^30450672 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 30450672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51590448).

30450672 is an abundant number, since it is smaller than the sum of its proper divisors (72730224).

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

30450672 is a wasteful number, since it uses less digits than its factorization.

30450672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815 (or 1806 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 30450672 is about 5518.2127541442. The cubic root of 30450672 is about 312.2714599964.

The spelling of 30450672 in words is "thirty million, four hundred fifty thousand, six hundred seventy-two".