30122445 has 16 divisors (see below), whose sum is σ = 49858560. Its totient is φ = 15511104.

The previous prime is 30122423. The next prime is 30122447. The reversal of 30122445 is 54422103.

It is not a de Polignac number, because 30122445 - 2⁶ = 30122381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122447) 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, 34189 + ... + 35058.

It is an arithmetic number, because the mean of its divisors is an integer number (3116160).

Almost surely, 2^30122445 is an apocalyptic number.

It is an amenable number.

30122445 is a deficient number, since it is larger than the sum of its proper divisors (19736115).

30122445 is a wasteful number, since it uses less digits than its factorization.

30122445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69284.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 30122445 is about 5488.3918409676. The cubic root of 30122445 is about 311.1454157420.

Adding to 30122445 its reverse (54422103), we get a palindrome (84544548).

The spelling of 30122445 in words is "thirty million, one hundred twenty-two thousand, four hundred forty-five".