378863728 has 20 divisors (see below), whose sum is σ = 765964368. Its totient is φ = 181195520.

The previous prime is 378863711. The next prime is 378863731. The reversal of 378863728 is 827368873.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514393 + ... + 515128.

Almost surely, 2^378863728 is an apocalyptic number.

It is an amenable number.

378863728 is an abundant number, since it is smaller than the sum of its proper divisors (387100640).

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

378863728 is a wasteful number, since it uses less digits than its factorization.

378863728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029552 (or 1029546 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 52.

The square root of 378863728 is about 19464.4221080411. The cubic root of 378863728 is about 723.5929765552.

It can be divided in two parts, 37886 and 3728, that added together give a palindrome (41614).

The spelling of 378863728 in words is "three hundred seventy-eight million, eight hundred sixty-three thousand, seven hundred twenty-eight".