42049800 has 192 divisors, whose sum is σ = 156240000. Its totient is φ = 10333440.

The previous prime is 42049783. The next prime is 42049817. The reversal of 42049800 is 894024.

It is an interprime number because it is at equal distance from previous prime (42049783) and next prime (42049817).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 69901 + ... + 70499.

It is an arithmetic number, because the mean of its divisors is an integer number (813750).

Almost surely, 2^42049800 is an apocalyptic number.

42049800 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 42049800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78120000).

42049800 is an abundant number, since it is smaller than the sum of its proper divisors (114190200).

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

42049800 is a wasteful number, since it uses less digits than its factorization.

42049800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 42049800 is about 6484.5817135726. The cubic root of 42049800 is about 347.7399960393.

It can be divided in two parts, 42049 and 800, that added together give a square (42849 = 207²).

The spelling of 42049800 in words is "forty-two million, forty-nine thousand, eight hundred".