144223842 has 32 divisors (see below), whose sum is σ = 340291584. Its totient is φ = 39877200.

The previous prime is 144223841. The next prime is 144223843. The reversal of 144223842 is 248322441.

It is an interprime number because it is at equal distance from previous prime (144223841) and next prime (144223843).

It is not an unprimeable number, because it can be changed into a prime (144223841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54084 + ... + 56687.

It is an arithmetic number, because the mean of its divisors is an integer number (10634112).

Almost surely, 2^144223842 is an apocalyptic number.

144223842 is an abundant number, since it is smaller than the sum of its proper divisors (196067742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144223842 is a wasteful number, since it uses less digits than its factorization.

144223842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110814.

The product of its digits is 12288, while the sum is 30.

The square root of 144223842 is about 12009.3231283033. The cubic root of 144223842 is about 524.4197271253.

The spelling of 144223842 in words is "one hundred forty-four million, two hundred twenty-three thousand, eight hundred forty-two".