30522340 has 12 divisors (see below), whose sum is σ = 64096956. Its totient is φ = 12208928.

The previous prime is 30522287. The next prime is 30522343. The reversal of 30522340 is 4322503.

It can be written as a sum of positive squares in 2 ways, for example, as 3211264 + 27311076 = 1792^2 + 5226^2 .

It is a super-2 number, since 2×30522340² = 1863226478151200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30522343) 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, 763039 + ... + 763078.

It is an arithmetic number, because the mean of its divisors is an integer number (5341413).

Almost surely, 2^30522340 is an apocalyptic number.

It is an amenable number.

30522340 is an abundant number, since it is smaller than the sum of its proper divisors (33574616).

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

30522340 is a wasteful number, since it uses less digits than its factorization.

30522340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526126 (or 1526124 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30522340 is about 5524.7027069337. The cubic root of 30522340 is about 312.5162530213.

Adding to 30522340 its reverse (4322503), we get a palindrome (34844843).

The spelling of 30522340 in words is "thirty million, five hundred twenty-two thousand, three hundred forty".