8042140 has 12 divisors (see below), whose sum is σ = 16888536. Its totient is φ = 3216848.

The previous prime is 8042101. The next prime is 8042147. The reversal of 8042140 is 412408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8042147) 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, 201034 + ... + 201073.

It is an arithmetic number, because the mean of its divisors is an integer number (1407378).

Almost surely, 2^8042140 is an apocalyptic number.

It is an amenable number.

8042140 is an abundant number, since it is smaller than the sum of its proper divisors (8846396).

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

8042140 is a wasteful number, since it uses less digits than its factorization.

8042140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402116 (or 402114 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 8042140 is about 2835.8667105490. The cubic root of 8042140 is about 200.3505518746.

Adding to 8042140 its reverse (412408), we get a palindrome (8454548).

The spelling of 8042140 in words is "eight million, forty-two thousand, one hundred forty".