30857034 has 24 divisors (see below), whose sum is σ = 66828672. Its totient is φ = 9494160.

The previous prime is 30857009. The next prime is 30857039. The reversal of 30857034 is 43075803.

It is a junction number, because it is equal to n+sod(n) for n = 30856992 and 30857010.

It is not an unprimeable number, because it can be changed into a prime (30857039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14202 + ... + 16229.

It is an arithmetic number, because the mean of its divisors is an integer number (2784528).

Almost surely, 2^30857034 is an apocalyptic number.

30857034 is an abundant number, since it is smaller than the sum of its proper divisors (35971638).

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

30857034 is a wasteful number, since it uses less digits than its factorization.

30857034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30462 (or 30449 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 30857034 is about 5554.9108003639. The cubic root of 30857034 is about 313.6544063096.

The spelling of 30857034 in words is "thirty million, eight hundred fifty-seven thousand, thirty-four".