42399007 has 8 divisors (see below), whose sum is σ = 49179776. Its totient is φ = 35799192.

The previous prime is 42399001. The next prime is 42399061. The reversal of 42399007 is 70099324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42399007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42399001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44733 + ... + 45670.

It is an arithmetic number, because the mean of its divisors is an integer number (6147472).

Almost surely, 2^42399007 is an apocalyptic number.

42399007 is a deficient number, since it is larger than the sum of its proper divisors (6780769).

42399007 is an equidigital number, since it uses as much as digits as its factorization.

42399007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90477.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 42399007 is about 6511.4519886121. The cubic root of 42399007 is about 348.6999580481.

The spelling of 42399007 in words is "forty-two million, three hundred ninety-nine thousand, seven".