42320007 has 12 divisors (see below), whose sum is σ = 61265880. Its totient is φ = 28150128.

The previous prime is 42319993. The next prime is 42320009. The reversal of 42320007 is 70002324.

It is a happy number.

It is not a de Polignac number, because 42320007 - 2⁸ = 42319751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42320009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 832 + ... + 9237.

It is an arithmetic number, because the mean of its divisors is an integer number (5105490).

Almost surely, 2^42320007 is an apocalyptic number.

42320007 is a deficient number, since it is larger than the sum of its proper divisors (18945873).

42320007 is a wasteful number, since it uses less digits than its factorization.

42320007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10542 (or 10539 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 42320007 is about 6505.3829249322. The cubic root of 42320007 is about 348.4832515295.

The spelling of 42320007 in words is "forty-two million, three hundred twenty thousand, seven".