42531200 has 48 divisors (see below), whose sum is σ = 105073260. Its totient is φ = 17011200.

The previous prime is 42531191. The next prime is 42531211. The reversal of 42531200 is 213524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3446 + ... + 9845.

Almost surely, 2^42531200 is an apocalyptic number.

42531200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42531200 is an abundant number, since it is smaller than the sum of its proper divisors (62542060).

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

42531200 is a wasteful number, since it uses less digits than its factorization.

42531200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13315 (or 13298 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 42531200 is about 6521.5948969558. The cubic root of 42531200 is about 349.0619780843.

Adding to 42531200 its reverse (213524), we get a palindrome (42744724).

The spelling of 42531200 in words is "forty-two million, five hundred thirty-one thousand, two hundred".