30273912 has 112 divisors (see below), whose sum is σ = 88533000. Its totient is φ = 9688896.

The previous prime is 30273907. The next prime is 30273913. The reversal of 30273912 is 21937203.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30273913) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 169039 + ... + 169217.

Almost surely, 2^30273912 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 30273912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44266500).

30273912 is an abundant number, since it is smaller than the sum of its proper divisors (58259088).

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

30273912 is a wasteful number, since it uses less digits than its factorization.

30273912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 30273912 is about 5502.1733887619. The cubic root of 30273912 is about 311.6660628291. Note that the first 3 decimals are identical.

The spelling of 30273912 in words is "thirty million, two hundred seventy-three thousand, nine hundred twelve".