42972042 has 8 divisors (see below), whose sum is σ = 85944096. Its totient is φ = 14324012.

The previous prime is 42972031. The next prime is 42972043. The reversal of 42972042 is 24027924.

It is a sphenic number, since it is the product of 3 distinct primes.

42972042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42972043) 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, 3580998 + ... + 3581009.

It is an arithmetic number, because the mean of its divisors is an integer number (10743012).

Almost surely, 2^42972042 is an apocalyptic number.

42972042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42972042 is a wasteful number, since it uses less digits than its factorization.

42972042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7162012.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 42972042 is about 6555.3064001616. The cubic root of 42972042 is about 350.2638608923.

Adding to 42972042 its reverse (24027924), we get a palindrome (66999966).

The spelling of 42972042 in words is "forty-two million, nine hundred seventy-two thousand, forty-two".