42000007 has 8 divisors (see below), whose sum is σ = 48980000. Its totient is φ = 35999712.

The previous prime is 41999987. The next prime is 42000011. The reversal of 42000007 is 70000024.

It is not a de Polignac number, because 42000007 - 2¹¹ = 41997959 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 (42000017) 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, 60882 + ... + 61567.

It is an arithmetic number, because the mean of its divisors is an integer number (6122500).

Almost surely, 2^42000007 is an apocalyptic number.

42000007 is a deficient number, since it is larger than the sum of its proper divisors (6979993).

42000007 is an equidigital number, since it uses as much as digits as its factorization.

42000007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122470 (or 122456 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 42000007 is about 6480.7412384696. The cubic root of 42000007 is about 347.6026837999.

The spelling of 42000007 in words is "forty-two million, seven", and thus it is an aban number and an uban number.