44400487 has 4 divisors (see below), whose sum is σ = 44452800. Its totient is φ = 44348176.

The previous prime is 44400443. The next prime is 44400523. The reversal of 44400487 is 78400444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44400487 - 2¹¹ = 44398439 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 (44403487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24862 + ... + 26587.

It is an arithmetic number, because the mean of its divisors is an integer number (11113200).

Almost surely, 2^44400487 is an apocalyptic number.

44400487 is a deficient number, since it is larger than the sum of its proper divisors (52313).

44400487 is an equidigital number, since it uses as much as digits as its factorization.

44400487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52312.

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 44400487 is about 6663.3690427591. The cubic root of 44400487 is about 354.1027051522.

The spelling of 44400487 in words is "forty-four million, four hundred thousand, four hundred eighty-seven".