42001534 has 8 divisors (see below), whose sum is σ = 63106920. Its totient is φ = 20965896.

The previous prime is 42001529. The next prime is 42001573. The reversal of 42001534 is 43510024.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15904 + ... + 18355.

It is an arithmetic number, because the mean of its divisors is an integer number (7888365).

Almost surely, 2^42001534 is an apocalyptic number.

42001534 is a deficient number, since it is larger than the sum of its proper divisors (21105386).

42001534 is a wasteful number, since it uses less digits than its factorization.

42001534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34874.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42001534 is about 6480.8590479966. The cubic root of 42001534 is about 347.6068963616.

Adding to 42001534 its reverse (43510024), we get a palindrome (85511558).

The spelling of 42001534 in words is "forty-two million, one thousand, five hundred thirty-four".