42050000 has 90 divisors (see below), whose sum is σ = 105465906. Its totient is φ = 16240000.

The previous prime is 42049991. The next prime is 42050039. The reversal of 42050000 is 5024.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 9 ways, for example, as 41886784 + 163216 = 6472^2 + 404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1449986 + ... + 1450014.

Almost surely, 2^42050000 is an apocalyptic number.

42050000 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 42050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52732953).

42050000 is an abundant number, since it is smaller than the sum of its proper divisors (63415906).

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

42050000 is an frugal number, since it uses more digits than its factorization.

42050000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 42050000 is about 6484.5971347494. The cubic root of 42050000 is about 347.7405473530.

Adding to 42050000 its reverse (5024), we get a palindrome (42055024).

The spelling of 42050000 in words is "forty-two million, fifty thousand", and thus it is an eban number.