42494454 has 48 divisors (see below), whose sum is σ = 96145920. Its totient is φ = 13547520.

The previous prime is 42494453. The next prime is 42494467. The reversal of 42494454 is 45449424.

It is a happy number.

42494454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42494453) 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 23 ways as a sum of consecutive naturals, for example, 65974 + ... + 66614.

It is an arithmetic number, because the mean of its divisors is an integer number (2003040).

Almost surely, 2^42494454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42494454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48072960).

42494454 is an abundant number, since it is smaller than the sum of its proper divisors (53651466).

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

42494454 is a wasteful number, since it uses less digits than its factorization.

42494454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 802 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 42494454 is about 6518.7770325422. Note that the first 3 decimals coincide. The cubic root of 42494454 is about 348.9614218872.

The spelling of 42494454 in words is "forty-two million, four hundred ninety-four thousand, four hundred fifty-four".