1249876432 has 20 divisors (see below), whose sum is σ = 2767583776. Its totient is φ = 535661280.

The previous prime is 1249876427. The next prime is 1249876447. The reversal of 1249876432 is 2346789421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5579694 + ... + 5579917.

Almost surely, 2^1249876432 is an apocalyptic number.

It is an amenable number.

1249876432 is an abundant number, since it is smaller than the sum of its proper divisors (1517707344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1249876432 is a wasteful number, since it uses less digits than its factorization.

1249876432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11159626 (or 11159620 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 1249876432 is about 35353.5915007231. The cubic root of 1249876432 is about 1077.1818479548.

The spelling of 1249876432 in words is "one billion, two hundred forty-nine million, eight hundred seventy-six thousand, four hundred thirty-two".