42249800 has 48 divisors (see below), whose sum is σ = 98952000. Its totient is φ = 16776000.

The previous prime is 42249797. The next prime is 42249847. The reversal of 42249800 is 894224.

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, 29501 + ... + 30899.

It is an arithmetic number, because the mean of its divisors is an integer number (2061500).

Almost surely, 2^42249800 is an apocalyptic number.

42249800 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 42249800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49476000).

42249800 is an abundant number, since it is smaller than the sum of its proper divisors (56702200).

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

42249800 is a wasteful number, since it uses less digits than its factorization.

42249800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 42249800 is about 6499.9846153664. The cubic root of 42249800 is about 348.2904388217.

The spelling of 42249800 in words is "forty-two million, two hundred forty-nine thousand, eight hundred".