30830044 has 48 divisors (see below), whose sum is σ = 65802240. Its totient is φ = 12337920.

The previous prime is 30830039. The next prime is 30830053. The reversal of 30830044 is 44003803.

30830044 = 407² + 408² + ... + 542².

It is a super-2 number, since 2×30830044² = 1900983226083872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30829997 and 30830024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113629 + ... + 113899.

It is an arithmetic number, because the mean of its divisors is an integer number (1370880).

Almost surely, 2^30830044 is an apocalyptic number.

30830044 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30830044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32901120).

30830044 is an abundant number, since it is smaller than the sum of its proper divisors (34972196).

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

30830044 is a wasteful number, since it uses less digits than its factorization.

30830044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 536 counting only the distinct ones).

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

The square root of 30830044 is about 5552.4808869549. The cubic root of 30830044 is about 313.5629306584.

Adding to 30830044 its reverse (44003803), we get a palindrome (74833847).

The spelling of 30830044 in words is "thirty million, eight hundred thirty thousand, forty-four".