4042000 has 80 divisors (see below), whose sum is σ = 10213632. Its totient is φ = 1545600.

The previous prime is 4041979. The next prime is 4042001. The reversal of 4042000 is 2404.

4042000 = T₂₄₅ + T₂₄₆ + ... + T₃₃₈.

4042000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is not an unprimeable number, because it can be changed into a prime (4042001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85977 + ... + 86023.

Almost surely, 2^4042000 is an apocalyptic number.

4042000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

4042000 is the 1075-th nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4042000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5106816).

4042000 is an abundant number, since it is smaller than the sum of its proper divisors (6171632).

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

4042000 is a wasteful number, since it uses less digits than its factorization.

4042000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 4042000 is about 2010.4725812604. The cubic root of 4042000 is about 159.2937622632.

Adding to 4042000 its reverse (2404), we get a palindrome (4044404).

The spelling of 4042000 in words is "four million, forty-two thousand", and thus it is an eban number.