1047866378 has 16 divisors (see below), whose sum is σ = 1781797920. Its totient is φ = 458176176.

The previous prime is 1047866341. The next prime is 1047866419. The reversal of 1047866378 is 8736687401.

1047866378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1047866378² = 2196047892285677768, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1060100 + ... + 1061087.

It is an arithmetic number, because the mean of its divisors is an integer number (111362370).

Almost surely, 2^1047866378 is an apocalyptic number.

1047866378 is a deficient number, since it is larger than the sum of its proper divisors (733931542).

1047866378 is a wasteful number, since it uses less digits than its factorization.

1047866378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121221.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 1047866378 is about 32370.7642480063. The cubic root of 1047866378 is about 1015.7074437443.

The spelling of 1047866378 in words is "one billion, forty-seven million, eight hundred sixty-six thousand, three hundred seventy-eight".