31444086 has 8 divisors (see below), whose sum is σ = 62888184. Its totient is φ = 10481360.

The previous prime is 31444079. The next prime is 31444087. The reversal of 31444086 is 68044413.

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

31444086 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31444087) 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, 2620335 + ... + 2620346.

It is an arithmetic number, because the mean of its divisors is an integer number (7861023).

Almost surely, 2^31444086 is an apocalyptic number.

31444086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31444086 is a wasteful number, since it uses less digits than its factorization.

31444086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5240686.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 31444086 is about 5607.5026526967. The cubic root of 31444086 is about 315.6310052251.

Adding to 31444086 its reverse (68044413), we get a palindrome (99488499).

The spelling of 31444086 in words is "thirty-one million, four hundred forty-four thousand, eighty-six".