30122090 has 8 divisors (see below), whose sum is σ = 54219780. Its totient is φ = 12048832.

The previous prime is 30122083. The next prime is 30122093. The reversal of 30122090 is 9022103.

It can be written as a sum of positive squares in 2 ways, for example, as 26245129 + 3876961 = 5123^2 + 1969^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (30122093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506095 + ... + 1506114.

Almost surely, 2^30122090 is an apocalyptic number.

30122090 is a deficient number, since it is larger than the sum of its proper divisors (24097690).

30122090 is a wasteful number, since it uses less digits than its factorization.

30122090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012216.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 30122090 is about 5488.3594998870. The cubic root of 30122090 is about 311.1441934303.

Adding to 30122090 its reverse (9022103), we get a palindrome (39144193).

The spelling of 30122090 in words is "thirty million, one hundred twenty-two thousand, ninety".