30829869 has 32 divisors (see below), whose sum is σ = 53280000. Its totient is φ = 17611776.

The previous prime is 30829859. The next prime is 30829873. The reversal of 30829869 is 96892803.

It is not a de Polignac number, because 30829869 - 2¹³ = 30821677 is a prime.

It is a super-2 number, since 2×30829869² = 1900961645114322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30829819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7597 + ... + 10925.

It is an arithmetic number, because the mean of its divisors is an integer number (1665000).

Almost surely, 2^30829869 is an apocalyptic number.

It is an amenable number.

30829869 is a deficient number, since it is larger than the sum of its proper divisors (22450131).

30829869 is an equidigital number, since it uses as much as digits as its factorization.

30829869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359 (or 3339 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 30829869 is about 5552.4651282111. The cubic root of 30829869 is about 313.5623373669.

The spelling of 30829869 in words is "thirty million, eight hundred twenty-nine thousand, eight hundred sixty-nine".