1268213724 has 36 divisors (see below), whose sum is σ = 3208121280. Its totient is φ = 422426880.

The previous prime is 1268213717. The next prime is 1268213759. The reversal of 1268213724 is 4273128621.

It is a happy number.

1268213724 is a `hidden beast` number, since 1 + 268 + 21 + 372 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39564 + ... + 64044.

It is an arithmetic number, because the mean of its divisors is an integer number (89114480).

Almost surely, 2^1268213724 is an apocalyptic number.

It is an amenable number.

1268213724 is an abundant number, since it is smaller than the sum of its proper divisors (1939907556).

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

1268213724 is a wasteful number, since it uses less digits than its factorization.

1268213724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25930 (or 25925 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 1268213724 is about 35611.9884870250. The cubic root of 1268213724 is about 1082.4241739561.

The spelling of 1268213724 in words is "one billion, two hundred sixty-eight million, two hundred thirteen thousand, seven hundred twenty-four".