30122000 has 40 divisors (see below), whose sum is σ = 72839832. Its totient is φ = 12048000.

The previous prime is 30121999. The next prime is 30122017. The reversal of 30122000 is 22103.

It can be written as a sum of positive squares in 4 ways, for example, as 135424 + 29986576 = 368^2 + 5476^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5531 + ... + 9530.

Almost surely, 2^30122000 is an apocalyptic number.

It is an amenable number.

30122000 is an abundant number, since it is smaller than the sum of its proper divisors (42717832).

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

30122000 is a wasteful number, since it uses less digits than its factorization.

30122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15084 (or 15068 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 30122000 is about 5488.3513007095. The cubic root of 30122000 is about 311.1438835469.

Adding to 30122000 its reverse (22103), we get a palindrome (30144103).

The spelling of 30122000 in words is "thirty million, one hundred twenty-two thousand".