1378074656 has 48 divisors (see below), whose sum is σ = 3103176384. Its totient is φ = 590125824.

The previous prime is 1378074641. The next prime is 1378074673. The reversal of 1378074656 is 6564708731.

It is a self number, because there is not a number n which added to its sum of digits gives 1378074656.

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, 512291 + ... + 514973.

It is an arithmetic number, because the mean of its divisors is an integer number (64649508).

Almost surely, 2^1378074656 is an apocalyptic number.

1378074656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1378074656 is an abundant number, since it is smaller than the sum of its proper divisors (1725101728).

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

1378074656 is a wasteful number, since it uses less digits than its factorization.

1378074656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993 (or 4985 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 1378074656 is about 37122.4279378383. The cubic root of 1378074656 is about 1112.8182735541.

The spelling of 1378074656 in words is "one billion, three hundred seventy-eight million, seventy-four thousand, six hundred fifty-six".