45493188 has 48 divisors (see below), whose sum is σ = 114984576. Its totient is φ = 13916160.

The previous prime is 45493187. The next prime is 45493193. The reversal of 45493188 is 88139454.

45493188 is digitally balanced in base 2 and base 9, because in such bases it contains all the possibile digits an equal number of times.

45493188 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (45493187) 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 15 ways as a sum of consecutive naturals, for example, 29353 + ... + 30863.

It is an arithmetic number, because the mean of its divisors is an integer number (2395512).

Almost surely, 2^45493188 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45493188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57492288).

45493188 is an abundant number, since it is smaller than the sum of its proper divisors (69491388).

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

45493188 is a wasteful number, since it uses less digits than its factorization.

45493188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724 (or 1722 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 45493188 is about 6744.8638236809. The cubic root of 45493188 is about 356.9840321146.

The spelling of 45493188 in words is "forty-five million, four hundred ninety-three thousand, one hundred eighty-eight".