42125442 has 16 divisors (see below), whose sum is σ = 86044032. Its totient is φ = 13742960.

The previous prime is 42125437. The next prime is 42125477. The reversal of 42125442 is 24452124.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74409 + ... + 74972.

It is an arithmetic number, because the mean of its divisors is an integer number (5377752).

Almost surely, 2^42125442 is an apocalyptic number.

42125442 is an abundant number, since it is smaller than the sum of its proper divisors (43918590).

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

42125442 is a wasteful number, since it uses less digits than its factorization.

42125442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149433.

The product of its digits is 2560, while the sum is 24.

The square root of 42125442 is about 6490.4115431920. The cubic root of 42125442 is about 347.9483838097.

Adding to 42125442 its reverse (24452124), we get a palindrome (66577566).

The spelling of 42125442 in words is "forty-two million, one hundred twenty-five thousand, four hundred forty-two".