42497800 has 48 divisors (see below), whose sum is σ = 99815040. Its totient is φ = 16825920.

The previous prime is 42497797. The next prime is 42497821. The reversal of 42497800 is 879424.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19569 + ... + 21631.

It is an arithmetic number, because the mean of its divisors is an integer number (2079480).

Almost surely, 2^42497800 is an apocalyptic number.

42497800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42497800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49907520).

42497800 is an abundant number, since it is smaller than the sum of its proper divisors (57317240).

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

42497800 is a wasteful number, since it uses less digits than its factorization.

42497800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182 (or 2173 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 42497800 is about 6519.0336707215. The cubic root of 42497800 is about 348.9705806845.

The spelling of 42497800 in words is "forty-two million, four hundred ninety-seven thousand, eight hundred".