30475136 has 32 divisors (see below), whose sum is σ = 62203680. Its totient is φ = 14863360.

The previous prime is 30475121. The next prime is 30475153. The reversal of 30475136 is 63157403.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 30475099 and 30475108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2345 + ... + 8151.

It is an arithmetic number, because the mean of its divisors is an integer number (1943865).

Almost surely, 2^30475136 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 30475136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31101840).

30475136 is an abundant number, since it is smaller than the sum of its proper divisors (31728544).

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

30475136 is an equidigital number, since it uses as much as digits as its factorization.

30475136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5862 (or 5850 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 30475136 is about 5520.4289688393. The cubic root of 30475136 is about 312.3550636695.

The spelling of 30475136 in words is "thirty million, four hundred seventy-five thousand, one hundred thirty-six".