42151850 has 24 divisors (see below), whose sum is σ = 84434700. Its totient is φ = 15563520.

The previous prime is 42151849. The next prime is 42151853. The reversal of 42151850 is 5815124.

42151850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 6880129 + 35271721 = 2623^2 + 5939^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42151853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31775 + ... + 33074.

Almost surely, 2^42151850 is an apocalyptic number.

42151850 is an abundant number, since it is smaller than the sum of its proper divisors (42282850).

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

42151850 is a wasteful number, since it uses less digits than its factorization.

42151850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64874 (or 64869 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 42151850 is about 6492.4456100918. The cubic root of 42151850 is about 348.0210770253.

Adding to 42151850 its reverse (5815124), we get a palindrome (47966974).

The spelling of 42151850 in words is "forty-two million, one hundred fifty-one thousand, eight hundred fifty".