378879420 has 48 divisors (see below), whose sum is σ = 1063157760. Its totient is φ = 100815936.

The previous prime is 378879419. The next prime is 378879421. The reversal of 378879420 is 24978873.

It is an interprime number because it is at equal distance from previous prime (378879419) and next prime (378879421).

It is a super-2 number, since 2×378879420² = 287099229799072800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 378879420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378879421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22149 + ... + 35331.

It is an arithmetic number, because the mean of its divisors is an integer number (22149120).

Almost surely, 2^378879420 is an apocalyptic number.

378879420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378879420 is an abundant number, since it is smaller than the sum of its proper divisors (684278340).

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

378879420 is a wasteful number, since it uses less digits than its factorization.

378879420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13674 (or 13672 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 378879420 is about 19464.8251982904. The cubic root of 378879420 is about 723.6029664833.

The spelling of 378879420 in words is "three hundred seventy-eight million, eight hundred seventy-nine thousand, four hundred twenty".