30220737 has 16 divisors (see below), whose sum is σ = 40857600. Its totient is φ = 19868112.

The previous prime is 30220733. The next prime is 30220741. The reversal of 30220737 is 73702203.

It is an interprime number because it is at equal distance from previous prime (30220733) and next prime (30220741).

It is not a de Polignac number, because 30220737 - 2² = 30220733 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30220733) 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 15 ways as a sum of consecutive naturals, for example, 133018 + ... + 133244.

It is an arithmetic number, because the mean of its divisors is an integer number (2553600).

Almost surely, 2^30220737 is an apocalyptic number.

It is an amenable number.

30220737 is a deficient number, since it is larger than the sum of its proper divisors (10636863).

30220737 is a wasteful number, since it uses less digits than its factorization.

30220737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652.

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 30220737 is about 5497.3390835931. The cubic root of 30220737 is about 311.4834792726.

The spelling of 30220737 in words is "thirty million, two hundred twenty thousand, seven hundred thirty-seven".