44157487 has 8 divisors (see below), whose sum is σ = 49197312. Its totient is φ = 39288600.

The previous prime is 44157403. The next prime is 44157499. The reversal of 44157487 is 78475144.

It is a happy number.

44157487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 44157487 - 2¹⁹ = 43633199 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 (44157787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42189 + ... + 43222.

It is an arithmetic number, because the mean of its divisors is an integer number (6149664).

Almost surely, 2^44157487 is an apocalyptic number.

44157487 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

44157487 is a deficient number, since it is larger than the sum of its proper divisors (5039825).

44157487 is a wasteful number, since it uses less digits than its factorization.

44157487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85469.

The product of its digits is 125440, while the sum is 40.

The square root of 44157487 is about 6645.1100066139. The cubic root of 44157487 is about 353.4555319788.

It can be divided in two parts, 44157 and 487, that added together give a palindrome (44644).

The spelling of 44157487 in words is "forty-four million, one hundred fifty-seven thousand, four hundred eighty-seven".