42572120 has 32 divisors (see below), whose sum is σ = 96411600. Its totient is φ = 16917888.

The previous prime is 42572119. The next prime is 42572137. The reversal of 42572120 is 2127524.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2891 + ... + 9669.

Almost surely, 2^42572120 is an apocalyptic number.

42572120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42572120 is an abundant number, since it is smaller than the sum of its proper divisors (53839480).

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

42572120 is a wasteful number, since it uses less digits than its factorization.

42572120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6947 (or 6943 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 42572120 is about 6524.7314120966. The cubic root of 42572120 is about 349.1738883819.

Adding to 42572120 its reverse (2127524), we get a palindrome (44699644).

The spelling of 42572120 in words is "forty-two million, five hundred seventy-two thousand, one hundred twenty".