42572004 has 12 divisors (see below), whose sum is σ = 99334704. Its totient is φ = 14190664.

The previous prime is 42572003. The next prime is 42572009. The reversal of 42572004 is 40027524.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (42572003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773822 + ... + 1773845.

It is an arithmetic number, because the mean of its divisors is an integer number (8277892).

Almost surely, 2^42572004 is an apocalyptic number.

It is an amenable number.

42572004 is an abundant number, since it is smaller than the sum of its proper divisors (56762700).

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

42572004 is a wasteful number, since it uses less digits than its factorization.

42572004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547674 (or 3547672 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 42572004 is about 6524.7225228357. The cubic root of 42572004 is about 349.1735712400.

Adding to 42572004 its reverse (40027524), we get a palindrome (82599528).

The spelling of 42572004 in words is "forty-two million, five hundred seventy-two thousand, four".