42001124 has 12 divisors (see below), whose sum is σ = 80184048. Its totient is φ = 19091400.

The previous prime is 42001117. The next prime is 42001171. The reversal of 42001124 is 42110024.

It is a junction number, because it is equal to n+sod(n) for n = 42001099 and 42001108.

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, 477242 + ... + 477329.

It is an arithmetic number, because the mean of its divisors is an integer number (6682004).

Almost surely, 2^42001124 is an apocalyptic number.

42001124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42001124 is a deficient number, since it is larger than the sum of its proper divisors (38182924).

42001124 is a wasteful number, since it uses less digits than its factorization.

42001124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954586 (or 954584 counting only the distinct ones).

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

The square root of 42001124 is about 6480.8274163104. The cubic root of 42001124 is about 347.6057652975.

Adding to 42001124 its reverse (42110024), we get a palindrome (84111148).

Subtracting 42001124 from its reverse (42110024), we obtain a square (108900 = 330²).

The spelling of 42001124 in words is "forty-two million, one thousand, one hundred twenty-four".