42237000 has 288 divisors, whose sum is σ = 162260280. Its totient is φ = 9849600.

The previous prime is 42236969. The next prime is 42237007. The reversal of 42237000 is 73224.

It is a happy number.

It is a Cunningham number, because it is equal to 6499²-1.

It can be written as a sum of positive squares in 4 ways, for example, as 5731236 + 36505764 = 2394^2 + 6042^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (42237007) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2222991 + ... + 2223009.

Almost surely, 2^42237000 is an apocalyptic number.

42237000 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 42237000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81130140).

42237000 is an abundant number, since it is smaller than the sum of its proper divisors (120023280).

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

42237000 is a wasteful number, since it uses less digits than its factorization.

42237000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 42237000 is about 6498.9999230651. Note that the first 4 decimals coincide. The cubic root of 42237000 is about 348.2552625770.

The spelling of 42237000 in words is "forty-two million, two hundred thirty-seven thousand".