44638069 has 6 divisors (see below), whose sum is σ = 51925974. Its totient is φ = 38261160.

The previous prime is 44638067. The next prime is 44638093. The reversal of 44638069 is 96083644.

It can be written as a sum of positive squares in only one way, i.e., 43758225 + 879844 = 6615^2 + 938^2 .

It is not a de Polignac number, because 44638069 - 2¹ = 44638067 is a prime.

It is a super-2 number, since 2×44638069² = 3985114408097522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44638067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 455442 + ... + 455539.

It is an arithmetic number, because the mean of its divisors is an integer number (8654329).

Almost surely, 2^44638069 is an apocalyptic number.

44638069 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

44638069 is a deficient number, since it is larger than the sum of its proper divisors (7287905).

44638069 is an equidigital number, since it uses as much as digits as its factorization.

44638069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910995 (or 910988 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 44638069 is about 6681.1727264007. The cubic root of 44638069 is about 354.7331698546.

The spelling of 44638069 in words is "forty-four million, six hundred thirty-eight thousand, sixty-nine".