44405394 has 64 divisors (see below), whose sum is σ = 108034560. Its totient is φ = 11992320.

The previous prime is 44405381. The next prime is 44405429. The reversal of 44405394 is 49350444.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20277 + ... + 22359.

It is an arithmetic number, because the mean of its divisors is an integer number (1688040).

Almost surely, 2^44405394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44405394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54017280).

44405394 is an abundant number, since it is smaller than the sum of its proper divisors (63629166).

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

44405394 is a wasteful number, since it uses less digits than its factorization.

44405394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 44405394 is about 6663.7372397177. The cubic root of 44405394 is about 354.1157494383.

The spelling of 44405394 in words is "forty-four million, four hundred five thousand, three hundred ninety-four".