42010120 has 16 divisors (see below), whose sum is σ = 94522860. Its totient is φ = 16804032.

The previous prime is 42010063. The next prime is 42010127. The reversal of 42010120 is 2101024.

It can be written as a sum of positive squares in 2 ways, for example, as 36893476 + 5116644 = 6074^2 + 2262^2 .

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 = 42010097 and 42010106.

It is not an unprimeable number, because it can be changed into a prime (42010127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525087 + ... + 525166.

Almost surely, 2^42010120 is an apocalyptic number.

42010120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42010120 is an abundant number, since it is smaller than the sum of its proper divisors (52512740).

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

42010120 is a wasteful number, since it uses less digits than its factorization.

42010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050264 (or 1050260 counting only the distinct ones).

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

The square root of 42010120 is about 6481.5214263319. The cubic root of 42010120 is about 347.6305808098.

Adding to 42010120 its reverse (2101024), we get a palindrome (44111144).

The spelling of 42010120 in words is "forty-two million, ten thousand, one hundred twenty".