42401142 has 48 divisors (see below), whose sum is σ = 105361152. Its totient is φ = 12072240.

The previous prime is 42401137. The next prime is 42401143. The reversal of 42401142 is 24110424.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42401143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61017 + ... + 61707.

It is an arithmetic number, because the mean of its divisors is an integer number (2195024).

Almost surely, 2^42401142 is an apocalyptic number.

42401142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42401142 is an abundant number, since it is smaller than the sum of its proper divisors (62960010).

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

42401142 is a wasteful number, since it uses less digits than its factorization.

42401142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 42401142 is about 6511.6159284774. The cubic root of 42401142 is about 348.7058108732.

Adding to 42401142 its reverse (24110424), we get a palindrome (66511566).

The spelling of 42401142 in words is "forty-two million, four hundred one thousand, one hundred forty-two".