31449849 has 8 divisors (see below), whose sum is σ = 41966112. Its totient is φ = 20950080.

The previous prime is 31449823. The next prime is 31449853. The reversal of 31449849 is 94894413.

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

It is not a de Polignac number, because 31449849 - 2¹⁶ = 31384313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31449849.

It is not an unprimeable number, because it can be changed into a prime (31449449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1377 + ... + 8049.

It is an arithmetic number, because the mean of its divisors is an integer number (5245764).

Almost surely, 2^31449849 is an apocalyptic number.

It is an amenable number.

31449849 is a deficient number, since it is larger than the sum of its proper divisors (10516263).

31449849 is a wasteful number, since it uses less digits than its factorization.

31449849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8247.

The product of its digits is 124416, while the sum is 42.

The square root of 31449849 is about 5608.0164942696. The cubic root of 31449849 is about 315.6502867562.

The spelling of 31449849 in words is "thirty-one million, four hundred forty-nine thousand, eight hundred forty-nine".