30422556 has 36 divisors (see below), whose sum is σ = 78055432. Its totient is φ = 9988704.

The previous prime is 30422551. The next prime is 30422573. The reversal of 30422556 is 65522403.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30422551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3895 + ... + 8718.

Almost surely, 2^30422556 is an apocalyptic number.

30422556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30422556 is an abundant number, since it is smaller than the sum of its proper divisors (47632876).

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

30422556 is a wasteful number, since it uses less digits than its factorization.

30422556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12690 (or 12685 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 30422556 is about 5515.6646018408. The cubic root of 30422556 is about 312.1753205967.

Adding to 30422556 its reverse (65522403), we get a palindrome (95944959).

The spelling of 30422556 in words is "thirty million, four hundred twenty-two thousand, five hundred fifty-six".