42401020 has 12 divisors (see below), whose sum is σ = 89042184. Its totient is φ = 16960400.

The previous prime is 42400991. The next prime is 42401033. The reversal of 42401020 is 2010424.

It is a congruent number.

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, 1060006 + ... + 1060045.

It is an arithmetic number, because the mean of its divisors is an integer number (7420182).

Almost surely, 2^42401020 is an apocalyptic number.

It is an amenable number.

42401020 is an abundant number, since it is smaller than the sum of its proper divisors (46641164).

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

42401020 is a wasteful number, since it uses less digits than its factorization.

42401020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120060 (or 2120058 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 42401020 is about 6511.6065605962. The cubic root of 42401020 is about 348.7054764313.

Adding to 42401020 its reverse (2010424), we get a palindrome (44411444).

The spelling of 42401020 in words is "forty-two million, four hundred one thousand, twenty".