1296571416 has 64 divisors (see below), whose sum is σ = 3740505600. Its totient is φ = 366847488.

The previous prime is 1296571403. The next prime is 1296571417. The reversal of 1296571416 is 6141756921.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296571417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20161 + ... + 54768.

It is an arithmetic number, because the mean of its divisors is an integer number (58445400).

Almost surely, 2^1296571416 is an apocalyptic number.

It is an amenable number.

1296571416 is an abundant number, since it is smaller than the sum of its proper divisors (2443934184).

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

1296571416 is a wasteful number, since it uses less digits than its factorization.

1296571416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75048 (or 75044 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 1296571416 is about 36007.9354587291. The cubic root of 1296571416 is about 1090.4325685412.

The spelling of 1296571416 in words is "one billion, two hundred ninety-six million, five hundred seventy-one thousand, four hundred sixteen".