444857378 has 48 divisors (see below), whose sum is σ = 808280064. Its totient is φ = 182891520.

The previous prime is 444857353. The next prime is 444857417. The reversal of 444857378 is 873758444.

It is a super-2 number, since 2×444857378² = 395796173522069768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385250 + ... + 386402.

It is an arithmetic number, because the mean of its divisors is an integer number (16839168).

Almost surely, 2^444857378 is an apocalyptic number.

444857378 is a deficient number, since it is larger than the sum of its proper divisors (363422686).

444857378 is a wasteful number, since it uses less digits than its factorization.

444857378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1320 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 50.

The square root of 444857378 is about 21091.6423732245. The cubic root of 444857378 is about 763.3791006716.

The spelling of 444857378 in words is "four hundred forty-four million, eight hundred fifty-seven thousand, three hundred seventy-eight".