42001422 has 16 divisors (see below), whose sum is σ = 84747600. Its totient is φ = 13876352.

The previous prime is 42001397. The next prime is 42001447. The reversal of 42001422 is 22410024.

It is an interprime number because it is at equal distance from previous prime (42001397) and next prime (42001447).

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, 30297 + ... + 31652.

It is an arithmetic number, because the mean of its divisors is an integer number (5296725).

Almost surely, 2^42001422 is an apocalyptic number.

42001422 is an abundant number, since it is smaller than the sum of its proper divisors (42746178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42001422 is a wasteful number, since it uses less digits than its factorization.

42001422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62067.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 42001422 is about 6480.8504071611. The cubic root of 42001422 is about 347.6065873887.

Adding to 42001422 its reverse (22410024), we get a palindrome (64411446).

The spelling of 42001422 in words is "forty-two million, one thousand, four hundred twenty-two".