1268352378 has 64 divisors (see below), whose sum is σ = 2935837440. Its totient is φ = 405518400.

The previous prime is 1268352361. The next prime is 1268352401. The reversal of 1268352378 is 8732538621.

1268352378 is a `hidden beast` number, since 1 + 268 + 352 + 37 + 8 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137388 + ... + 146328.

It is an arithmetic number, because the mean of its divisors is an integer number (45872460).

Almost surely, 2^1268352378 is an apocalyptic number.

1268352378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1268352378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467918720).

1268352378 is an abundant number, since it is smaller than the sum of its proper divisors (1667485062).

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

1268352378 is a wasteful number, since it uses less digits than its factorization.

1268352378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9060 (or 9054 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 1268352378 is about 35613.9351658870. The cubic root of 1268352378 is about 1082.4636197187.

The spelling of 1268352378 in words is "one billion, two hundred sixty-eight million, three hundred fifty-two thousand, three hundred seventy-eight".