44861509 has 12 divisors (see below), whose sum is σ = 56930688. Its totient is φ = 34956600.

The previous prime is 44861491. The next prime is 44861519. The reversal of 44861509 is 90516844.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-44861509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44861519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41077 + ... + 42154.

It is an arithmetic number, because the mean of its divisors is an integer number (4744224).

Almost surely, 2^44861509 is an apocalyptic number.

44861509 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

44861509 is a deficient number, since it is larger than the sum of its proper divisors (12069179).

44861509 is a wasteful number, since it uses less digits than its factorization.

44861509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83256 (or 83249 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 44861509 is about 6697.8734684973. The cubic root of 44861509 is about 355.3240682917.

It can be divided in two parts, 4486 and 1509, that added together give a palindrome (5995).

The spelling of 44861509 in words is "forty-four million, eight hundred sixty-one thousand, five hundred nine".