30475392 has 64 divisors (see below), whose sum is σ = 85231200. Its totient is φ = 9621504.

The previous prime is 30475369. The next prime is 30475397. The reversal of 30475392 is 29357403.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (30475397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5208 + ... + 9384.

Almost surely, 2^30475392 is an apocalyptic number.

30475392 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30475392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42615600).

30475392 is an abundant number, since it is smaller than the sum of its proper divisors (54755808).

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

30475392 is a wasteful number, since it uses less digits than its factorization.

30475392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4213 (or 4201 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 30475392 is about 5520.4521553945. The cubic root of 30475392 is about 312.3559382915.

The spelling of 30475392 in words is "thirty million, four hundred seventy-five thousand, three hundred ninety-two".