45458442 has 64 divisors (see below), whose sum is σ = 111663360. Its totient is φ = 13635072.

The previous prime is 45458423. The next prime is 45458443. The reversal of 45458442 is 24485454.

It is a junction number, because it is equal to n+sod(n) for n = 45458397 and 45458406.

It is not an unprimeable number, because it can be changed into a prime (45458443) 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 31 ways as a sum of consecutive naturals, for example, 20038 + ... + 22190.

It is an arithmetic number, because the mean of its divisors is an integer number (1744740).

Almost surely, 2^45458442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45458442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55831680).

45458442 is an abundant number, since it is smaller than the sum of its proper divisors (66204918).

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

45458442 is a wasteful number, since it uses less digits than its factorization.

45458442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204 (or 2198 counting only the distinct ones).

The product of its digits is 102400, while the sum is 36.

The square root of 45458442 is about 6742.2875939847. The cubic root of 45458442 is about 356.8931252711.

The spelling of 45458442 in words is "forty-five million, four hundred fifty-eight thousand, four hundred forty-two".