1268037478 has 8 divisors (see below), whose sum is σ = 1903783968. Its totient is φ = 633442824.

The previous prime is 1268037467. The next prime is 1268037559. The reversal of 1268037478 is 8747308621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1268037478² = 3215838091225200968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285201 + ... + 289612.

It is an arithmetic number, because the mean of its divisors is an integer number (237972996).

Almost surely, 2^1268037478 is an apocalyptic number.

1268037478 is a deficient number, since it is larger than the sum of its proper divisors (635746490).

1268037478 is a wasteful number, since it uses less digits than its factorization.

1268037478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575918.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 1268037478 is about 35609.5138691895. The cubic root of 1268037478 is about 1082.3740294720.

The spelling of 1268037478 in words is "one billion, two hundred sixty-eight million, thirty-seven thousand, four hundred seventy-eight".