42552428 has 24 divisors (see below), whose sum is σ = 80341632. Its totient is φ = 19645184.

The previous prime is 42552427. The next prime is 42552431. The reversal of 42552428 is 82425524.

It is a junction number, because it is equal to n+sod(n) for n = 42552394 and 42552403.

It is not an unprimeable number, because it can be changed into a prime (42552427) 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 7 ways as a sum of consecutive naturals, for example, 2300 + ... + 9507.

It is an arithmetic number, because the mean of its divisors is an integer number (3347568).

Almost surely, 2^42552428 is an apocalyptic number.

It is an amenable number.

42552428 is a deficient number, since it is larger than the sum of its proper divisors (37789204).

42552428 is a wasteful number, since it uses less digits than its factorization.

42552428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11881 (or 11879 counting only the distinct ones).

The product of its digits is 25600, while the sum is 32.

The square root of 42552428 is about 6523.2222099205. Note that the first 4 decimals coincide. The cubic root of 42552428 is about 349.1200425579.

The spelling of 42552428 in words is "forty-two million, five hundred fifty-two thousand, four hundred twenty-eight".