30222709 has 8 divisors (see below), whose sum is σ = 33341760. Its totient is φ = 27165600.

The previous prime is 30222701. The next prime is 30222721. The reversal of 30222709 is 90722203.

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

It is not a de Polignac number, because 30222709 - 2³ = 30222701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14457 + ... + 16414.

It is an arithmetic number, because the mean of its divisors is an integer number (4167720).

Almost surely, 2^30222709 is an apocalyptic number.

It is an amenable number.

30222709 is a deficient number, since it is larger than the sum of its proper divisors (3119051).

30222709 is a wasteful number, since it uses less digits than its factorization.

30222709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30971.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 30222709 is about 5497.5184401692. The cubic root of 30222709 is about 311.4902542239.

The spelling of 30222709 in words is "thirty million, two hundred twenty-two thousand, seven hundred nine".