42001045 has 8 divisors (see below), whose sum is σ = 50512896. Its totient is φ = 33526416.

The previous prime is 42001021. The next prime is 42001051. The reversal of 42001045 is 54010024.

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

It is a cyclic number.

It is not a de Polignac number, because 42001045 - 2²³ = 33612437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6757 + ... + 11386.

It is an arithmetic number, because the mean of its divisors is an integer number (6314112).

Almost surely, 2^42001045 is an apocalyptic number.

It is an amenable number.

42001045 is a deficient number, since it is larger than the sum of its proper divisors (8511851).

42001045 is a wasteful number, since it uses less digits than its factorization.

42001045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18611.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 42001045 is about 6480.8213214067. The cubic root of 42001045 is about 347.6055473598.

Adding to 42001045 its reverse (54010024), we get a palindrome (96011069).

The spelling of 42001045 in words is "forty-two million, one thousand, forty-five".