444691378 has 16 divisors (see below), whose sum is σ = 679129920. Its totient is φ = 218323600.

The previous prime is 444691369. The next prime is 444691381. The reversal of 444691378 is 873196444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137763 + ... + 140953.

It is an arithmetic number, because the mean of its divisors is an integer number (42445620).

Almost surely, 2^444691378 is an apocalyptic number.

444691378 is a deficient number, since it is larger than the sum of its proper divisors (234438542).

444691378 is a wasteful number, since it uses less digits than its factorization.

444691378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433.

The product of its digits is 580608, while the sum is 46.

The square root of 444691378 is about 21087.7067980376. The cubic root of 444691378 is about 763.2841363809.

The spelling of 444691378 in words is "four hundred forty-four million, six hundred ninety-one thousand, three hundred seventy-eight".