42225124 has 6 divisors (see below), whose sum is σ = 73893974. Its totient is φ = 21112560.

The previous prime is 42225107. The next prime is 42225133. The reversal of 42225124 is 42152224.

It can be written as a sum of positive squares in only one way, i.e., 31002624 + 11222500 = 5568^2 + 3350^2 .

It is a super-2 number, since 2×42225124² = 3565922193630752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42225095 and 42225104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278137 + ... + 5278144.

Almost surely, 2^42225124 is an apocalyptic number.

It is an amenable number.

42225124 is a deficient number, since it is larger than the sum of its proper divisors (31668850).

42225124 is a wasteful number, since it uses less digits than its factorization.

42225124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556285 (or 10556283 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 42225124 is about 6498.0861797917. The cubic root of 42225124 is about 348.2226192612. Note that the first 3 decimals are identical.

Adding to 42225124 its reverse (42152224), we get a palindrome (84377348).

Subtracting from 42225124 its reverse (42152224), we obtain a square (72900 = 270²).

The spelling of 42225124 in words is "forty-two million, two hundred twenty-five thousand, one hundred twenty-four".