378743928 has 32 divisors (see below), whose sum is σ = 947496960. Its totient is φ = 126163040.

The previous prime is 378743927. The next prime is 378743999. The reversal of 378743928 is 829347873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378743927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38473 + ... + 47303.

It is an arithmetic number, because the mean of its divisors is an integer number (29609280).

Almost surely, 2^378743928 is an apocalyptic number.

It is an amenable number.

378743928 is an abundant number, since it is smaller than the sum of its proper divisors (568753032).

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

378743928 is a wasteful number, since it uses less digits than its factorization.

378743928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10627 (or 10623 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The square root of 378743928 is about 19461.3444550987. The cubic root of 378743928 is about 723.5166997211.

The spelling of 378743928 in words is "three hundred seventy-eight million, seven hundred forty-three thousand, nine hundred twenty-eight".