30122334 has 128 divisors (see below), whose sum is σ = 81907200. Its totient is φ = 8087040.

The previous prime is 30122333. The next prime is 30122369. The reversal of 30122334 is 43322103.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122333) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 191784 + ... + 191940.

It is an arithmetic number, because the mean of its divisors is an integer number (639900).

Almost surely, 2^30122334 is an apocalyptic number.

30122334 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30122334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40953600).

30122334 is an abundant number, since it is smaller than the sum of its proper divisors (51784866).

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

30122334 is a wasteful number, since it uses less digits than its factorization.

30122334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30122334 is about 5488.3817287066. The cubic root of 30122334 is about 311.1450335554.

Adding to 30122334 its reverse (43322103), we get a palindrome (73444437).

The spelling of 30122334 in words is "thirty million, one hundred twenty-two thousand, three hundred thirty-four".