30040522 has 32 divisors (see below), whose sum is σ = 48186432. Its totient is φ = 14027904.

The previous prime is 30040511. The next prime is 30040523. The reversal of 30040522 is 22504003.

It is a junction number, because it is equal to n+sod(n) for n = 30040496 and 30040505.

It is not an unprimeable number, because it can be changed into a prime (30040523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361893 + ... + 361975.

It is an arithmetic number, because the mean of its divisors is an integer number (1505826).

Almost surely, 2^30040522 is an apocalyptic number.

30040522 is a deficient number, since it is larger than the sum of its proper divisors (18145910).

30040522 is a wasteful number, since it uses less digits than its factorization.

30040522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 30040522 is about 5480.9234623373. The cubic root of 30040522 is about 310.8630890701.

Adding to 30040522 its reverse (22504003), we get a palindrome (52544525).

The spelling of 30040522 in words is "thirty million, forty thousand, five hundred twenty-two".