42100450 has 48 divisors (see below), whose sum is σ = 91940544. Its totient is φ = 14040000.

The previous prime is 42100439. The next prime is 42100451. The reversal of 42100450 is 5400124.

It is not an unprimeable number, because it can be changed into a prime (42100451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11325 + ... + 14575.

It is an arithmetic number, because the mean of its divisors is an integer number (1915428).

Almost surely, 2^42100450 is an apocalyptic number.

42100450 is an abundant number, since it is smaller than the sum of its proper divisors (49840094).

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

42100450 is a wasteful number, since it uses less digits than its factorization.

42100450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307 (or 3302 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 42100450 is about 6488.4859559068. The cubic root of 42100450 is about 347.8795604269.

Adding to 42100450 its reverse (5400124), we get a palindrome (47500574).

The spelling of 42100450 in words is "forty-two million, one hundred thousand, four hundred fifty".