30823420 has 12 divisors (see below), whose sum is σ = 64729224. Its totient is φ = 12329360.

The previous prime is 30823411. The next prime is 30823421. The reversal of 30823420 is 2432803.

It is a junction number, because it is equal to n+sod(n) for n = 30823391 and 30823400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30823421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770566 + ... + 770605.

It is an arithmetic number, because the mean of its divisors is an integer number (5394102).

Almost surely, 2^30823420 is an apocalyptic number.

It is an amenable number.

30823420 is an abundant number, since it is smaller than the sum of its proper divisors (33905804).

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

30823420 is a wasteful number, since it uses less digits than its factorization.

30823420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541180 (or 1541178 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 30823420 is about 5551.8843647900. The cubic root of 30823420 is about 313.5404721585.

The spelling of 30823420 in words is "thirty million, eight hundred twenty-three thousand, four hundred twenty".