42051450 has 96 divisors (see below), whose sum is σ = 123384960. Its totient is φ = 9273600.

The previous prime is 42051403. The next prime is 42051461. The reversal of 42051450 is 5415024.

42051450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 29760 + ... + 31140.

It is an arithmetic number, because the mean of its divisors is an integer number (1285260).

Almost surely, 2^42051450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42051450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61692480).

42051450 is an abundant number, since it is smaller than the sum of its proper divisors (81333510).

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

42051450 is a wasteful number, since it uses less digits than its factorization.

42051450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 42051450 is about 6484.7089371845. The cubic root of 42051450 is about 347.7445443248.

Adding to 42051450 its reverse (5415024), we get a palindrome (47466474).

The spelling of 42051450 in words is "forty-two million, fifty-one thousand, four hundred fifty".