42320142 has 24 divisors (see below), whose sum is σ = 92857440. Its totient is φ = 13927680.

The previous prime is 42320141. The next prime is 42320143. The reversal of 42320142 is 24102324.

42320142 is a `hidden beast` number, since 423 + 201 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (42320141) and next prime (42320143).

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 (42320141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13459 + ... + 16302.

It is an arithmetic number, because the mean of its divisors is an integer number (3869060).

Almost surely, 2^42320142 is an apocalyptic number.

42320142 is an abundant number, since it is smaller than the sum of its proper divisors (50537298).

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

42320142 is a wasteful number, since it uses less digits than its factorization.

42320142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29848 (or 29845 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42320142 is about 6505.3933009465. The cubic root of 42320142 is about 348.4836220807.

Adding to 42320142 its reverse (24102324), we get a palindrome (66422466).

The spelling of 42320142 in words is "forty-two million, three hundred twenty thousand, one hundred forty-two".