42722475 has 36 divisors (see below), whose sum is σ = 72277368. Its totient is φ = 22265600.

The previous prime is 42722473. The next prime is 42722503. The reversal of 42722475 is 57422724.

It is a happy number.

It is not a de Polignac number, because 42722475 - 2¹ = 42722473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42722473) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 378019 + ... + 378131.

Almost surely, 2^42722475 is an apocalyptic number.

42722475 is a deficient number, since it is larger than the sum of its proper divisors (29554893).

42722475 is a wasteful number, since it uses less digits than its factorization.

42722475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 192 counting only the distinct ones).

The product of its digits is 31360, while the sum is 33.

The square root of 42722475 is about 6536.2431870303. The cubic root of 42722475 is about 349.5844728593.

The spelling of 42722475 in words is "forty-two million, seven hundred twenty-two thousand, four hundred seventy-five".