42240007 has 8 divisors (see below), whose sum is σ = 42812000. Its totient is φ = 41671584.

The previous prime is 42239971. The next prime is 42240013. The reversal of 42240007 is 70004224.

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-42240007 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 (42240017) 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, 29494 + ... + 30892.

It is an arithmetic number, because the mean of its divisors is an integer number (5351500).

Almost surely, 2^42240007 is an apocalyptic number.

42240007 is a deficient number, since it is larger than the sum of its proper divisors (571993).

42240007 is a wasteful number, since it uses less digits than its factorization.

42240007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 42240007 is about 6499.2312622340. The cubic root of 42240007 is about 348.2635268850.

The spelling of 42240007 in words is "forty-two million, two hundred forty thousand, seven".