1296504420 has 48 divisors (see below), whose sum is σ = 3728332608. Its totient is φ = 336389760.

The previous prime is 1296504403. The next prime is 1296504427. The reversal of 1296504420 is 244056921.

It is a super-2 number, since 2×1296504420² = 3361847422159072800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1296504427) 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, 289786 + ... + 294225.

It is an arithmetic number, because the mean of its divisors is an integer number (77673596).

Almost surely, 2^1296504420 is an apocalyptic number.

1296504420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1296504420 is an abundant number, since it is smaller than the sum of its proper divisors (2431828188).

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

1296504420 is a wasteful number, since it uses less digits than its factorization.

1296504420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584060 (or 584058 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1296504420 is about 36007.0051517757. The cubic root of 1296504420 is about 1090.4137867299.

The spelling of 1296504420 in words is "one billion, two hundred ninety-six million, five hundred four thousand, four hundred twenty".