44045421 has 8 divisors (see below), whose sum is σ = 67116864. Its totient is φ = 25168800.

The previous prime is 44045411. The next prime is 44045467. The reversal of 44045421 is 12454044.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44045421 - 2²³ = 35656813 is a prime.

It is a super-2 number, since 2×44045421² = 3879998222134482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44045391 and 44045400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44045411) 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, 1048680 + ... + 1048721.

It is an arithmetic number, because the mean of its divisors is an integer number (8389608).

Almost surely, 2^44045421 is an apocalyptic number.

It is an amenable number.

44045421 is a deficient number, since it is larger than the sum of its proper divisors (23071443).

44045421 is a wasteful number, since it uses less digits than its factorization.

44045421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097411.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 44045421 is about 6636.6724342851. The cubic root of 44045421 is about 353.1562705072.

Adding to 44045421 its reverse (12454044), we get a palindrome (56499465).

The spelling of 44045421 in words is "forty-four million, forty-five thousand, four hundred twenty-one".