1296428124 has 48 divisors (see below), whose sum is σ = 3110516640. Its totient is φ = 420076800.

The previous prime is 1296428047. The next prime is 1296428129. The reversal of 1296428124 is 4218246921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296428129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59974 + ... + 78674.

It is an arithmetic number, because the mean of its divisors is an integer number (64802430).

Almost surely, 2^1296428124 is an apocalyptic number.

It is an amenable number.

1296428124 is an abundant number, since it is smaller than the sum of its proper divisors (1814088516).

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

1296428124 is a wasteful number, since it uses less digits than its factorization.

1296428124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18870 (or 18868 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 1296428124 is about 36005.9456756797. The cubic root of 1296428124 is about 1090.3923969475.

The spelling of 1296428124 in words is "one billion, two hundred ninety-six million, four hundred twenty-eight thousand, one hundred twenty-four".