42022140 has 48 divisors (see below), whose sum is σ = 118153728. Its totient is φ = 11159104.

The previous prime is 42022111. The next prime is 42022159. The reversal of 42022140 is 4122024.

It is a Harshad number since it is a multiple of its sum of digits (15).

42022140 is a modest number, since divided by 22140 gives 420 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14449 + ... + 17111.

It is an arithmetic number, because the mean of its divisors is an integer number (2461536).

Almost surely, 2^42022140 is an apocalyptic number.

It is an amenable number.

42022140 is an abundant number, since it is smaller than the sum of its proper divisors (76131588).

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

42022140 is a wasteful number, since it uses less digits than its factorization.

42022140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938 (or 2936 counting only the distinct ones).

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

The square root of 42022140 is about 6482.4486114431. The cubic root of 42022140 is about 347.6637325133.

Adding to 42022140 its reverse (4122024), we get a palindrome (46144164).

The spelling of 42022140 in words is "forty-two million, twenty-two thousand, one hundred forty".