42118901 has 8 divisors (see below), whose sum is σ = 46082304. Its totient is φ = 38177920.

The previous prime is 42118891. The next prime is 42118907. The reversal of 42118901 is 10981124.

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

It is not a de Polignac number, because 42118901 - 2⁶ = 42118837 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 (42118907) 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, 1541 + ... + 9306.

It is an arithmetic number, because the mean of its divisors is an integer number (5760288).

Almost surely, 2^42118901 is an apocalyptic number.

It is an amenable number.

42118901 is a deficient number, since it is larger than the sum of its proper divisors (3963403).

42118901 is a wasteful number, since it uses less digits than its factorization.

42118901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11211.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 42118901 is about 6489.9076264613. The cubic root of 42118901 is about 347.9303737262.

The spelling of 42118901 in words is "forty-two million, one hundred eighteen thousand, nine hundred one".