144398222 has 8 divisors (see below), whose sum is σ = 217029456. Its totient is φ = 72055072.

The previous prime is 144398201. The next prime is 144398231. The reversal of 144398222 is 222893441.

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

It is a super-2 number, since 2×144398222² = 41701693033522568, 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, 70763 + ... + 72774.

It is an arithmetic number, because the mean of its divisors is an integer number (27128682).

Almost surely, 2^144398222 is an apocalyptic number.

144398222 is a deficient number, since it is larger than the sum of its proper divisors (72631234).

144398222 is a wasteful number, since it uses less digits than its factorization.

144398222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144042.

The product of its digits is 27648, while the sum is 35.

The square root of 144398222 is about 12016.5811277584. The cubic root of 144398222 is about 524.6309993602.

The spelling of 144398222 in words is "one hundred forty-four million, three hundred ninety-eight thousand, two hundred twenty-two".