42011020 has 12 divisors (see below), whose sum is σ = 88223184. Its totient is φ = 16804400.

The previous prime is 42011017. The next prime is 42011083. The reversal of 42011020 is 2011024.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 42010988 and 42011006.

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, 1050256 + ... + 1050295.

It is an arithmetic number, because the mean of its divisors is an integer number (7351932).

Almost surely, 2^42011020 is an apocalyptic number.

It is an amenable number.

42011020 is an abundant number, since it is smaller than the sum of its proper divisors (46212164).

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

42011020 is a wasteful number, since it uses less digits than its factorization.

42011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100560 (or 2100558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 42011020 is about 6481.5908541036. The cubic root of 42011020 is about 347.6330632695.

Adding to 42011020 its reverse (2011024), we get a palindrome (44022044).

The spelling of 42011020 in words is "forty-two million, eleven thousand, twenty".