45991248 has 80 divisors (see below), whose sum is σ = 126182400. Its totient is φ = 14394240.

The previous prime is 45991247. The next prime is 45991261. The reversal of 45991248 is 84219954.

45991248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (103680) is a multiple of the sum of its prime factors (480).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45991243) 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, 192313 + ... + 192551.

It is an arithmetic number, because the mean of its divisors is an integer number (1577280).

Almost surely, 2^45991248 is an apocalyptic number.

45991248 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45991248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63091200).

45991248 is an abundant number, since it is smaller than the sum of its proper divisors (80191152).

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

45991248 is a wasteful number, since it uses less digits than its factorization.

45991248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 474 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 45991248 is about 6781.6847464329. The cubic root of 45991248 is about 358.2820618668.

The spelling of 45991248 in words is "forty-five million, nine hundred ninety-one thousand, two hundred forty-eight".