45068640 has 48 divisors (see below), whose sum is σ = 141967728. Its totient is φ = 12018176.

The previous prime is 45068633. The next prime is 45068641. The reversal of 45068640 is 4686054.

It is a happy number.

45068640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×45068640² = 4062364622899200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45068641) 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 7 ways as a sum of consecutive naturals, for example, 46467 + ... + 47426.

It is an arithmetic number, because the mean of its divisors is an integer number (2957661).

Almost surely, 2^45068640 is an apocalyptic number.

45068640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45068640 is an abundant number, since it is smaller than the sum of its proper divisors (96899088).

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

45068640 is a wasteful number, since it uses less digits than its factorization.

45068640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93911 (or 93903 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 45068640 is about 6713.3181065700. The cubic root of 45068640 is about 355.8700868396.

The spelling of 45068640 in words is "forty-five million, sixty-eight thousand, six hundred forty".