31444401 has 8 divisors (see below), whose sum is σ = 42081664. Its totient is φ = 20885040.

The previous prime is 31444379. The next prime is 31444403. The reversal of 31444401 is 10444413.

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

It is not a de Polignac number, because 31444401 - 2¹¹ = 31442353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31444403) 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 7 ways as a sum of consecutive naturals, for example, 18526 + ... + 20151.

It is an arithmetic number, because the mean of its divisors is an integer number (5260208).

Almost surely, 2^31444401 is an apocalyptic number.

It is an amenable number.

31444401 is a deficient number, since it is larger than the sum of its proper divisors (10637263).

31444401 is a wasteful number, since it uses less digits than its factorization.

31444401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38951.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 31444401 is about 5607.5307399960. The cubic root of 31444401 is about 315.6320591958.

Adding to 31444401 its reverse (10444413), we get a palindrome (41888814).

The spelling of 31444401 in words is "thirty-one million, four hundred forty-four thousand, four hundred one".