29998222 has 8 divisors (see below), whose sum is σ = 45021672. Its totient is φ = 14991000.

The previous prime is 29998181. The next prime is 29998237. The reversal of 29998222 is 22289992.

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

It is a super-2 number, since 2×29998222² = 1799786646322568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3072 + ... + 8332.

It is an arithmetic number, because the mean of its divisors is an integer number (5627709).

Almost surely, 2^29998222 is an apocalyptic number.

29998222 is a deficient number, since it is larger than the sum of its proper divisors (15023450).

29998222 is a wasteful number, since it uses less digits than its factorization.

29998222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8114.

The product of its digits is 93312, while the sum is 43.

The square root of 29998222 is about 5477.0632641955. The cubic root of 29998222 is about 310.7171119637.

It can be divided in two parts, 2999822 and 2, that added together give a square (2999824 = 1732²).

The spelling of 29998222 in words is "twenty-nine million, nine hundred ninety-eight thousand, two hundred twenty-two".