31440034 has 8 divisors (see below), whose sum is σ = 49210560. Its totient is φ = 15036516.

The previous prime is 31440001. The next prime is 31440049. The reversal of 31440034 is 43004413.

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

It is a junction number, because it is equal to n+sod(n) for n = 31439993 and 31440020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341694 + ... + 341785.

It is an arithmetic number, because the mean of its divisors is an integer number (6151320).

Almost surely, 2^31440034 is an apocalyptic number.

31440034 is a deficient number, since it is larger than the sum of its proper divisors (17770526).

31440034 is a wasteful number, since it uses less digits than its factorization.

31440034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683504.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 31440034 is about 5607.1413393992. The cubic root of 31440034 is about 315.6174468539.

Adding to 31440034 its reverse (43004413), we get a palindrome (74444447).

The spelling of 31440034 in words is "thirty-one million, four hundred forty thousand, thirty-four".