45731456 has 32 divisors (see below), whose sum is σ = 92614980. Its totient is φ = 22487040.

The previous prime is 45731449. The next prime is 45731467. The reversal of 45731456 is 65413754.

It can be written as a sum of positive squares in 2 ways, for example, as 45697600 + 33856 = 6760^2 + 184^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4880 + ... + 10736.

Almost surely, 2^45731456 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 45731456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46307490).

45731456 is an abundant number, since it is smaller than the sum of its proper divisors (46883524).

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

45731456 is an equidigital number, since it uses as much as digits as its factorization.

45731456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5932 (or 5920 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 45731456 is about 6762.5036783724. The cubic root of 45731456 is about 357.6061751240.

It can be divided in two parts, 457 and 31456, that added together give a palindrome (31913).

The spelling of 45731456 in words is "forty-five million, seven hundred thirty-one thousand, four hundred fifty-six".