45043668 has 48 divisors (see below), whose sum is σ = 118776000. Its totient is φ = 14757984.

The previous prime is 45043657. The next prime is 45043673. The reversal of 45043668 is 86634054.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2838 + ... + 9906.

It is an arithmetic number, because the mean of its divisors is an integer number (2474500).

Almost surely, 2^45043668 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 45043668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59388000).

45043668 is an abundant number, since it is smaller than the sum of its proper divisors (73732332).

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

45043668 is a wasteful number, since it uses less digits than its factorization.

45043668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7141 (or 7133 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 45043668 is about 6711.4579638108. The cubic root of 45043668 is about 355.8043468951.

The spelling of 45043668 in words is "forty-five million, forty-three thousand, six hundred sixty-eight".