31444434 has 48 divisors (see below), whose sum is σ = 78174720. Its totient is φ = 8948160.

The previous prime is 31444403. The next prime is 31444453. The reversal of 31444434 is 43444413.

It is a junction number, because it is equal to n+sod(n) for n = 31444398 and 31444407.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 60094 + ... + 60614.

It is an arithmetic number, because the mean of its divisors is an integer number (1628640).

Almost surely, 2^31444434 is an apocalyptic number.

31444434 is an abundant number, since it is smaller than the sum of its proper divisors (46730286).

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

31444434 is a wasteful number, since it uses less digits than its factorization.

31444434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1012 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 31444434 is about 5607.5336824668. The cubic root of 31444434 is about 315.6321696113.

Adding to 31444434 its reverse (43444413), we get a palindrome (74888847).

It can be divided in two parts, 31444 and 434, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 31444434 in words is "thirty-one million, four hundred forty-four thousand, four hundred thirty-four".