42222552 has 32 divisors (see below), whose sum is σ = 105774000. Its totient is φ = 14045184.

The previous prime is 42222539. The next prime is 42222559. The reversal of 42222552 is 25522224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42222559) 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, 12324 + ... + 15372.

Almost surely, 2^42222552 is an apocalyptic number.

It is an amenable number.

42222552 is an abundant number, since it is smaller than the sum of its proper divisors (63551448).

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

42222552 is a wasteful number, since it uses less digits than its factorization.

42222552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635 (or 3631 counting only the distinct ones).

The product of its digits is 3200, while the sum is 24.

The square root of 42222552 is about 6497.8882723543. Note that the first 3 decimals coincide. The cubic root of 42222552 is about 348.2155488516.

Adding to 42222552 its reverse (25522224), we get a palindrome (67744776).

The spelling of 42222552 in words is "forty-two million, two hundred twenty-two thousand, five hundred fifty-two".