45642534 has 64 divisors (see below), whose sum is σ = 111891456. Its totient is φ = 12127104.

The previous prime is 45642533. The next prime is 45642581. The reversal of 45642534 is 43524654.

45642534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 45642495 and 45642504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45642533) 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 31 ways as a sum of consecutive naturals, for example, 35104 + ... + 36380.

It is an arithmetic number, because the mean of its divisors is an integer number (1748304).

Almost surely, 2^45642534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45642534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55945728).

45642534 is an abundant number, since it is smaller than the sum of its proper divisors (66248922).

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

45642534 is a wasteful number, since it uses less digits than its factorization.

45642534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349.

The product of its digits is 57600, while the sum is 33.

The square root of 45642534 is about 6755.9258432875. The cubic root of 45642534 is about 357.3742436716.

The spelling of 45642534 in words is "forty-five million, six hundred forty-two thousand, five hundred thirty-four".