1246654864 has 135 divisors (see below), whose sum is σ = 3074193027. Its totient is φ = 488097792.

The previous prime is 1246654861. The next prime is 1246654879. The reversal of 1246654864 is 4684566421.

The square root of 1246654864 is 35308.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 227768464 + 1018886400 = 15092^2 + 31920^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1246654861) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 12852064 + ... + 12852160.

Almost surely, 2^1246654864 is an apocalyptic number.

1246654864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1246654864 is the 35308-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1246654864

1246654864 is an abundant number, since it is smaller than the sum of its proper divisors (1827538163).

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

1246654864 is an equidigital number, since it uses as much as digits as its factorization.

1246654864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 119 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 46.

The cubic root of 1246654864 is about 1076.2555696277.

The spelling of 1246654864 in words is "one billion, two hundred forty-six million, six hundred fifty-four thousand, eight hundred sixty-four".