42014021 has 24 divisors (see below), whose sum is σ = 53450496. Its totient is φ = 32780160.

The previous prime is 42013999. The next prime is 42014033. The reversal of 42014021 is 12041024.

It is not a de Polignac number, because 42014021 - 2⁶ = 42013957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42013987 and 42014005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42014041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25010 + ... + 26636.

It is an arithmetic number, because the mean of its divisors is an integer number (2227104).

Almost surely, 2^42014021 is an apocalyptic number.

It is an amenable number.

42014021 is a deficient number, since it is larger than the sum of its proper divisors (11436475).

42014021 is a wasteful number, since it uses less digits than its factorization.

42014021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 42014021 is about 6481.8223517773. The cubic root of 42014021 is about 347.6413406372.

Adding to 42014021 its reverse (12041024), we get a palindrome (54055045).

It can be divided in two parts, 420 and 14021, that added together give a palindrome (14441).

The spelling of 42014021 in words is "forty-two million, fourteen thousand, twenty-one".