45383640 has 64 divisors (see below), whose sum is σ = 137237760. Its totient is φ = 12005760.

The previous prime is 45383633. The next prime is 45383641. The reversal of 45383640 is 4638354.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45383641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14277 + ... + 17163.

It is an arithmetic number, because the mean of its divisors is an integer number (2144340).

Almost surely, 2^45383640 is an apocalyptic number.

45383640 is a gapful number since it is divisible by the number (40) 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 45383640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68618880).

45383640 is an abundant number, since it is smaller than the sum of its proper divisors (91854120).

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

45383640 is a wasteful number, since it uses less digits than its factorization.

45383640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032 (or 3028 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 45383640 is about 6736.7380830785. The cubic root of 45383640 is about 356.6972615713.

The spelling of 45383640 in words is "forty-five million, three hundred eighty-three thousand, six hundred forty".