404622378 has 40 divisors (see below), whose sum is σ = 907899300. Its totient is φ = 134688960.

The previous prime is 404622373. The next prime is 404622401. The reversal of 404622378 is 873226404.

It can be written as a sum of positive squares in 2 ways, for example, as 396686889 + 7935489 = 19917^2 + 2817^2 .

It is not an unprimeable number, because it can be changed into a prime (404622373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 168748 + ... + 171128.

Almost surely, 2^404622378 is an apocalyptic number.

404622378 is an abundant number, since it is smaller than the sum of its proper divisors (503276922).

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

404622378 is a wasteful number, since it uses less digits than its factorization.

404622378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444 (or 3435 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 404622378 is about 20115.2275154918. The cubic root of 404622378 is about 739.6336011799.

The spelling of 404622378 in words is "four hundred four million, six hundred twenty-two thousand, three hundred seventy-eight".