30823845 has 16 divisors (see below), whose sum is σ = 53112192. Its totient is φ = 15174720.

The previous prime is 30823831. The next prime is 30823847. The reversal of 30823845 is 54832803.

It is not a de Polignac number, because 30823845 - 2⁴ = 30823829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30823847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78841 + ... + 79230.

It is an arithmetic number, because the mean of its divisors is an integer number (3319512).

Almost surely, 2^30823845 is an apocalyptic number.

It is an amenable number.

30823845 is a deficient number, since it is larger than the sum of its proper divisors (22288347).

30823845 is a wasteful number, since it uses less digits than its factorization.

30823845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158092.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 30823845 is about 5551.9226399510. The cubic root of 30823845 is about 313.5419132066.

The spelling of 30823845 in words is "thirty million, eight hundred twenty-three thousand, eight hundred forty-five".