42245651 has 8 divisors (see below), whose sum is σ = 49403904. Its totient is φ = 35368200.

The previous prime is 42245647. The next prime is 42245657. The reversal of 42245651 is 15654224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42245651 - 2² = 42245647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42245657) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 69875 + ... + 70476.

It is an arithmetic number, because the mean of its divisors is an integer number (6175488).

Almost surely, 2^42245651 is an apocalyptic number.

42245651 is a deficient number, since it is larger than the sum of its proper divisors (7158253).

42245651 is a wasteful number, since it uses less digits than its factorization.

42245651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140401.

The product of its digits is 9600, while the sum is 29.

The square root of 42245651 is about 6499.6654529291. The cubic root of 42245651 is about 348.2790375501.

Adding to 42245651 its reverse (15654224), we get a palindrome (57899875).

The spelling of 42245651 in words is "forty-two million, two hundred forty-five thousand, six hundred fifty-one".