30864838 has 8 divisors (see below), whose sum is σ = 46931688. Its totient is φ = 15220944.

The previous prime is 30864833. The next prime is 30864839. The reversal of 30864838 is 83846803.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30864838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30864833) 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, 105556 + ... + 105847.

It is an arithmetic number, because the mean of its divisors is an integer number (5866461).

Almost surely, 2^30864838 is an apocalyptic number.

30864838 is a deficient number, since it is larger than the sum of its proper divisors (16066850).

30864838 is a wasteful number, since it uses less digits than its factorization.

30864838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211478.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 30864838 is about 5555.6131974787. The cubic root of 30864838 is about 313.6808460150.

The spelling of 30864838 in words is "thirty million, eight hundred sixty-four thousand, eight hundred thirty-eight".