44991786 has 16 divisors (see below), whose sum is σ = 102838464. Its totient is φ = 12854784.

The previous prime is 44991781. The next prime is 44991787. The reversal of 44991786 is 68719944.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44991781) 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, 535575 + ... + 535658.

It is an arithmetic number, because the mean of its divisors is an integer number (6427404).

Almost surely, 2^44991786 is an apocalyptic number.

44991786 is an abundant number, since it is smaller than the sum of its proper divisors (57846678).

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

44991786 is a wasteful number, since it uses less digits than its factorization.

44991786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071245.

The product of its digits is 435456, while the sum is 48.

The square root of 44991786 is about 6707.5916691462. The cubic root of 44991786 is about 355.6676874124.

It can be divided in two parts, 449 and 91786, that added together give a triangular number (92235 = T₄₂₉).

The spelling of 44991786 in words is "forty-four million, nine hundred ninety-one thousand, seven hundred eighty-six".