378647520 has 48 divisors (see below), whose sum is σ = 1192741200. Its totient is φ = 100972544.

The previous prime is 378647513. The next prime is 378647531. The reversal of 378647520 is 25746873.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent 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, 393945 + ... + 394904.

It is an arithmetic number, because the mean of its divisors is an integer number (24848775).

Almost surely, 2^378647520 is an apocalyptic number.

378647520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378647520 is an abundant number, since it is smaller than the sum of its proper divisors (814093680).

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

378647520 is a wasteful number, since it uses less digits than its factorization.

378647520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788867 (or 788859 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 378647520 is about 19458.8673873892. The cubic root of 378647520 is about 723.4553049262.

The spelling of 378647520 in words is "three hundred seventy-eight million, six hundred forty-seven thousand, five hundred twenty".