30355122 has 32 divisors (see below), whose sum is σ = 73036800. Its totient is φ = 8216208.

The previous prime is 30355111. The next prime is 30355123. The reversal of 30355122 is 22155303.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (30355123) 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, 18222 + ... + 19817.

It is an arithmetic number, because the mean of its divisors is an integer number (2282400).

Almost surely, 2^30355122 is an apocalyptic number.

30355122 is an abundant number, since it is smaller than the sum of its proper divisors (42681678).

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

30355122 is a wasteful number, since it uses less digits than its factorization.

30355122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38070.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 30355122 is about 5509.5482573438. The cubic root of 30355122 is about 311.9444962082.

The spelling of 30355122 in words is "thirty million, three hundred fifty-five thousand, one hundred twenty-two".