42001022 has 8 divisors (see below), whose sum is σ = 72001776. Its totient is φ = 18000432.

The previous prime is 42001021. The next prime is 42001051. The reversal of 42001022 is 22010024.

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

It is a junction number, because it is equal to n+sod(n) for n = 42000994 and 42001012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42001021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1500023 + ... + 1500050.

It is an arithmetic number, because the mean of its divisors is an integer number (9000222).

Almost surely, 2^42001022 is an apocalyptic number.

42001022 is a deficient number, since it is larger than the sum of its proper divisors (30000754).

42001022 is a wasteful number, since it uses less digits than its factorization.

42001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000082.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 42001022 is about 6480.8195469400. The cubic root of 42001022 is about 347.6054839096.

Adding to 42001022 its reverse (22010024), we get a palindrome (64011046).

The spelling of 42001022 in words is "forty-two million, one thousand, twenty-two".