378693656 has 16 divisors (see below), whose sum is σ = 774600840. Its totient is φ = 172133440.

The previous prime is 378693641. The next prime is 378693661. The reversal of 378693656 is 656396873.

It is a junction number, because it is equal to n+sod(n) for n = 378693598 and 378693607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2151581 + ... + 2151756.

Almost surely, 2^378693656 is an apocalyptic number.

It is an amenable number.

378693656 is an abundant number, since it is smaller than the sum of its proper divisors (395907184).

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

378693656 is a wasteful number, since it uses less digits than its factorization.

378693656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303354 (or 4303350 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 53.

The square root of 378693656 is about 19460.0528262387. The cubic root of 378693656 is about 723.4846866746.

The spelling of 378693656 in words is "three hundred seventy-eight million, six hundred ninety-three thousand, six hundred fifty-six".