45481856 has 64 divisors (see below), whose sum is σ = 108103680. Its totient is φ = 18636288.

The previous prime is 45481841. The next prime is 45481859. The reversal of 45481856 is 65818454.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45481859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19505 + ... + 21711.

It is an arithmetic number, because the mean of its divisors is an integer number (1689120).

Almost surely, 2^45481856 is an apocalyptic number.

45481856 is a gapful number since it is divisible by the number (46) 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 45481856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54051840).

45481856 is an abundant number, since it is smaller than the sum of its proper divisors (62621824).

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

45481856 is a wasteful number, since it uses less digits than its factorization.

45481856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251 (or 2239 counting only the distinct ones).

The product of its digits is 153600, while the sum is 41.

The square root of 45481856 is about 6744.0237247507. The cubic root of 45481856 is about 356.9543890027.

The spelling of 45481856 in words is "forty-five million, four hundred eighty-one thousand, eight hundred fifty-six".