42452120 has 32 divisors (see below), whose sum is σ = 95703120. Its totient is φ = 16947840.

The previous prime is 42452117. The next prime is 42452131. The reversal of 42452120 is 2125424.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 42452092 and 42452101.

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, 38294 + ... + 39386.

Almost surely, 2^42452120 is an apocalyptic number.

42452120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42452120 is an abundant number, since it is smaller than the sum of its proper divisors (53251000).

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

42452120 is a wasteful number, since it uses less digits than its factorization.

42452120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075 (or 2071 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42452120 is about 6515.5291419807. The cubic root of 42452120 is about 348.8455021229.

Adding to 42452120 its reverse (2125424), we get a palindrome (44577544).

The spelling of 42452120 in words is "forty-two million, four hundred fifty-two thousand, one hundred twenty".