31474449 has 6 divisors (see below), whose sum is σ = 45463106. Its totient is φ = 20982960.

The previous prime is 31474433. The next prime is 31474481. The reversal of 31474449 is 94447413.

It can be written as a sum of positive squares in only one way, i.e., 27373824 + 4100625 = 5232^2 + 2025^2 .

It is not a de Polignac number, because 31474449 - 2⁴ = 31474433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31474489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1748572 + ... + 1748589.

Almost surely, 2^31474449 is an apocalyptic number.

It is an amenable number.

31474449 is a deficient number, since it is larger than the sum of its proper divisors (13988657).

31474449 is a wasteful number, since it uses less digits than its factorization.

31474449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497167 (or 3497164 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 31474449 is about 5610.2093543824. The cubic root of 31474449 is about 315.7325656181.

The spelling of 31474449 in words is "thirty-one million, four hundred seventy-four thousand, four hundred forty-nine".