1271664924 has 24 divisors (see below), whose sum is σ = 2982134400. Its totient is φ = 421757424.

The previous prime is 1271664907. The next prime is 1271664931. The reversal of 1271664924 is 4294661721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263874 + ... + 268649.

It is an arithmetic number, because the mean of its divisors is an integer number (124255600).

Almost surely, 2^1271664924 is an apocalyptic number.

It is an amenable number.

1271664924 is an abundant number, since it is smaller than the sum of its proper divisors (1710469476).

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

1271664924 is a wasteful number, since it uses less digits than its factorization.

1271664924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532729 (or 532727 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 1271664924 is about 35660.4111585943. The cubic root of 1271664924 is about 1083.4051544547.

The spelling of 1271664924 in words is "one billion, two hundred seventy-one million, six hundred sixty-four thousand, nine hundred twenty-four".