42552244 has 24 divisors (see below), whose sum is σ = 86186240. Its totient is φ = 18004896.

The previous prime is 42552233. The next prime is 42552247. The reversal of 42552244 is 44225524.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42552247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7407 + ... + 11830.

Almost surely, 2^42552244 is an apocalyptic number.

It is an amenable number.

42552244 is an abundant number, since it is smaller than the sum of its proper divisors (43633996).

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

42552244 is a wasteful number, since it uses less digits than its factorization.

42552244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19327 (or 19325 counting only the distinct ones).

The product of its digits is 12800, while the sum is 28.

The square root of 42552244 is about 6523.2081064458. The cubic root of 42552244 is about 349.1195393498.

Adding to 42552244 its reverse (44225524), we get a palindrome (86777768).

The spelling of 42552244 in words is "forty-two million, five hundred fifty-two thousand, two hundred forty-four".