30220287 has 8 divisors (see below), whose sum is σ = 40361904. Its totient is φ = 20112768.

The previous prime is 30220277. The next prime is 30220327. The reversal of 30220287 is 78202203.

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

It is not a de Polignac number, because 30220287 - 2¹⁴ = 30203903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6378 + ... + 10055.

It is an arithmetic number, because the mean of its divisors is an integer number (5045238).

Almost surely, 2^30220287 is an apocalyptic number.

30220287 is a deficient number, since it is larger than the sum of its proper divisors (10141617).

30220287 is a wasteful number, since it uses less digits than its factorization.

30220287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17049.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 30220287 is about 5497.2981545483. The cubic root of 30220287 is about 311.4819332232.

The spelling of 30220287 in words is "thirty million, two hundred twenty thousand, two hundred eighty-seven".