42552438 has 32 divisors (see below), whose sum is σ = 93484800. Its totient is φ = 12852576.

The previous prime is 42552431. The next prime is 42552451. The reversal of 42552438 is 83425524.

It is a junction number, because it is equal to n+sod(n) for n = 42552399 and 42552408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42552431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5493 + ... + 10736.

It is an arithmetic number, because the mean of its divisors is an integer number (2921400).

Almost surely, 2^42552438 is an apocalyptic number.

42552438 is an abundant number, since it is smaller than the sum of its proper divisors (50932362).

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

42552438 is a wasteful number, since it uses less digits than its factorization.

42552438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16276.

The product of its digits is 38400, while the sum is 33.

The square root of 42552438 is about 6523.2229764128. Note that the first 3 decimals coincide. The cubic root of 42552438 is about 349.1200699061.

The spelling of 42552438 in words is "forty-two million, five hundred fifty-two thousand, four hundred thirty-eight".