42002224 has 20 divisors (see below), whose sum is σ = 88777800. Its totient is φ = 19091840.

The previous prime is 42002201. The next prime is 42002227. The reversal of 42002224 is 42220024.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 42002198 and 42002207.

It is not an unprimeable number, because it can be changed into a prime (42002227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119149 + ... + 119500.

It is an arithmetic number, because the mean of its divisors is an integer number (4438890).

Almost surely, 2^42002224 is an apocalyptic number.

42002224 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42002224 is an abundant number, since it is smaller than the sum of its proper divisors (46775576).

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

42002224 is a wasteful number, since it uses less digits than its factorization.

42002224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238668 (or 238662 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 42002224 is about 6480.9122814616. The cubic root of 42002224 is about 347.6087998433.

Adding to 42002224 its reverse (42220024), we get a palindrome (84222248).

The spelling of 42002224 in words is "forty-two million, two thousand, two hundred twenty-four".