1268901832 has 48 divisors (see below), whose sum is σ = 2664593820. Its totient is φ = 565868160.

The previous prime is 1268901797. The next prime is 1268901859. The reversal of 1268901832 is 2381098621.

It can be written as a sum of positive squares in 2 ways, for example, as 1234397956 + 34503876 = 35134^2 + 5874^2 .

It is a super-2 number, since 2×1268901832² = 3220223718505912448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38938 + ... + 63670.

Almost surely, 2^1268901832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1268901832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1332296910).

1268901832 is an abundant number, since it is smaller than the sum of its proper divisors (1395691988).

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

1268901832 is a wasteful number, since it uses less digits than its factorization.

1268901832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24814 (or 24799 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 1268901832 is about 35621.6483616354. The cubic root of 1268901832 is about 1082.6199059664.

The spelling of 1268901832 in words is "one billion, two hundred sixty-eight million, nine hundred one thousand, eight hundred thirty-two".