30400522 has 16 divisors (see below), whose sum is σ = 49842432. Its totient is φ = 13844160.

The previous prime is 30400501. The next prime is 30400523. The reversal of 30400522 is 22500403.

It is a junction number, because it is equal to n+sod(n) for n = 30400496 and 30400505.

It is not an unprimeable number, because it can be changed into a prime (30400523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13368 + ... + 15475.

It is an arithmetic number, because the mean of its divisors is an integer number (3115152).

Almost surely, 2^30400522 is an apocalyptic number.

30400522 is a deficient number, since it is larger than the sum of its proper divisors (19441910).

30400522 is a wasteful number, since it uses less digits than its factorization.

30400522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28893.

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

The square root of 30400522 is about 5513.6668379582. Note that the first 3 decimals coincide. The cubic root of 30400522 is about 312.0999364826.

Adding to 30400522 its reverse (22500403), we get a palindrome (52900925).

The spelling of 30400522 in words is "thirty million, four hundred thousand, five hundred twenty-two".