378917124 has 12 divisors (see below), whose sum is σ = 884139984. Its totient is φ = 126305704.

The previous prime is 378917117. The next prime is 378917129. The reversal of 378917124 is 421719873.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (378917129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15788202 + ... + 15788225.

It is an arithmetic number, because the mean of its divisors is an integer number (73678332).

Almost surely, 2^378917124 is an apocalyptic number.

It is an amenable number.

378917124 is an abundant number, since it is smaller than the sum of its proper divisors (505222860).

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

378917124 is a wasteful number, since it uses less digits than its factorization.

378917124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31576434 (or 31576432 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 378917124 is about 19465.7936904715. The cubic root of 378917124 is about 723.6269686854.

The spelling of 378917124 in words is "three hundred seventy-eight million, nine hundred seventeen thousand, one hundred twenty-four".