45781722 has 48 divisors (see below), whose sum is σ = 114296832. Its totient is φ = 12972960.

The previous prime is 45781709. The next prime is 45781733. The reversal of 45781722 is 22718754.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14572 + ... + 17432.

It is an arithmetic number, because the mean of its divisors is an integer number (2381184).

Almost surely, 2^45781722 is an apocalyptic number.

45781722 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 45781722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57148416).

45781722 is an abundant number, since it is smaller than the sum of its proper divisors (68515110).

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

45781722 is a wasteful number, since it uses less digits than its factorization.

45781722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003 (or 3000 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 45781722 is about 6766.2191806060. The cubic root of 45781722 is about 357.7371487955.

The spelling of 45781722 in words is "forty-five million, seven hundred eighty-one thousand, seven hundred twenty-two".