31449016 has 16 divisors (see below), whose sum is σ = 60222240. Its totient is φ = 15389760.

The previous prime is 31448987. The next prime is 31449017. The reversal of 31449016 is 61094413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31449017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41445 + ... + 42196.

It is an arithmetic number, because the mean of its divisors is an integer number (3763890).

Almost surely, 2^31449016 is an apocalyptic number.

It is an amenable number.

31449016 is a deficient number, since it is larger than the sum of its proper divisors (28773224).

31449016 is a wasteful number, since it uses less digits than its factorization.

31449016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83694 (or 83690 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 31449016 is about 5607.9422250947. The cubic root of 31449016 is about 315.6474998959.

The spelling of 31449016 in words is "thirty-one million, four hundred forty-nine thousand, sixteen".