1249434471 has 8 divisors (see below), whose sum is σ = 1753592320. Its totient is φ = 789116472.

The previous prime is 1249434467. The next prime is 1249434491. The reversal of 1249434471 is 1744349421.

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

It is not a de Polignac number, because 1249434471 - 2² = 1249434467 is a prime.

It is a super-3 number, since 3×1249434471³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249434491) 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, 10959895 + ... + 10960008.

It is an arithmetic number, because the mean of its divisors is an integer number (219199040).

Almost surely, 2^1249434471 is an apocalyptic number.

1249434471 is a deficient number, since it is larger than the sum of its proper divisors (504157849).

1249434471 is a wasteful number, since it uses less digits than its factorization.

1249434471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21919925.

The product of its digits is 96768, while the sum is 39.

The square root of 1249434471 is about 35347.3403667093. The cubic root of 1249434471 is about 1077.0548678045.

The spelling of 1249434471 in words is "one billion, two hundred forty-nine million, four hundred thirty-four thousand, four hundred seventy-one".