42322649 has 4 divisors (see below), whose sum is σ = 42433536. Its totient is φ = 42211764.

The previous prime is 42322601. The next prime is 42322661. The reversal of 42322649 is 94622324.

42322649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42322649 - 2¹² = 42318553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42322669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54869 + ... + 55634.

It is an arithmetic number, because the mean of its divisors is an integer number (10608384).

Almost surely, 2^42322649 is an apocalyptic number.

It is an amenable number.

42322649 is a deficient number, since it is larger than the sum of its proper divisors (110887).

42322649 is a wasteful number, since it uses less digits than its factorization.

42322649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110886.

The product of its digits is 20736, while the sum is 32.

The square root of 42322649 is about 6505.5859843676. The cubic root of 42322649 is about 348.4905032107.

The spelling of 42322649 in words is "forty-two million, three hundred twenty-two thousand, six hundred forty-nine".