45091746 has 48 divisors (see below), whose sum is σ = 112679424. Its totient is φ = 12765312.

The previous prime is 45091729. The next prime is 45091751. The reversal of 45091746 is 64719054.

It is a self number, because there is not a number n which added to its sum of digits gives 45091746.

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, 12655 + ... + 15821.

It is an arithmetic number, because the mean of its divisors is an integer number (2347488).

It is a vampire number, since it can be written as 4746 ⋅ 9501 (with its own digits).

Almost surely, 2^45091746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45091746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56339712).

45091746 is an abundant number, since it is smaller than the sum of its proper divisors (67587678).

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

45091746 is a wasteful number, since it uses less digits than its factorization.

45091746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295 (or 3292 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 45091746 is about 6715.0387936333. The cubic root of 45091746 is about 355.9308928265.

The spelling of 45091746 in words is "forty-five million, ninety-one thousand, seven hundred forty-six".