44142405 has 24 divisors (see below), whose sum is σ = 73845408. Its totient is φ = 22514976.

The previous prime is 44142391. The next prime is 44142409. The reversal of 44142405 is 50424144.

It is a happy number.

It is not a de Polignac number, because 44142405 - 2⁴ = 44142389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44142409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5154 + ... + 10716.

It is an arithmetic number, because the mean of its divisors is an integer number (3076892).

Almost surely, 2^44142405 is an apocalyptic number.

It is an amenable number.

44142405 is a deficient number, since it is larger than the sum of its proper divisors (29703003).

44142405 is a wasteful number, since it uses less digits than its factorization.

44142405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617 (or 5594 counting only the distinct ones).

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

The square root of 44142405 is about 6643.9750902603. The cubic root of 44142405 is about 353.4152864566.

Adding to 44142405 its reverse (50424144), we get a palindrome (94566549).

The spelling of 44142405 in words is "forty-four million, one hundred forty-two thousand, four hundred five".