378807426 has 24 divisors (see below), whose sum is σ = 828721920. Its totient is φ = 125042616.

The previous prime is 378807421. The next prime is 378807433. The reversal of 378807426 is 624708873.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (378807421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100306 + ... + 104013.

It is an arithmetic number, because the mean of its divisors is an integer number (34530080).

Almost surely, 2^378807426 is an apocalyptic number.

378807426 is an abundant number, since it is smaller than the sum of its proper divisors (449914494).

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

378807426 is a wasteful number, since it uses less digits than its factorization.

378807426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204430 (or 204427 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 378807426 is about 19462.9757745315. The cubic root of 378807426 is about 723.5571309929.

The spelling of 378807426 in words is "three hundred seventy-eight million, eight hundred seven thousand, four hundred twenty-six".