42555392 has 48 divisors (see below), whose sum is σ = 92874600. Its totient is φ = 19333120.

The previous prime is 42555391. The next prime is 42555413. The reversal of 42555392 is 29355524.

It is a super-2 number, since 2×42555392² = 3621922776547328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42555391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21584 + ... + 23472.

Almost surely, 2^42555392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42555392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46437300).

42555392 is an abundant number, since it is smaller than the sum of its proper divisors (50319208).

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

42555392 is a wasteful number, since it uses less digits than its factorization.

42555392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922 (or 1902 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

The square root of 42555392 is about 6523.4493943005. The cubic root of 42555392 is about 349.1281483843.

The spelling of 42555392 in words is "forty-two million, five hundred fifty-five thousand, three hundred ninety-two".