444428904 has 32 divisors (see below), whose sum is σ = 1141103520. Its totient is φ = 144138816.

The previous prime is 444428899. The next prime is 444428921. The reversal of 444428904 is 409824444.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 249354 + ... + 251129.

It is an arithmetic number, because the mean of its divisors is an integer number (35659485).

Almost surely, 2^444428904 is an apocalyptic number.

It is an amenable number.

444428904 is an abundant number, since it is smaller than the sum of its proper divisors (696674616).

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

444428904 is a wasteful number, since it uses less digits than its factorization.

444428904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500529 (or 500525 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The square root of 444428904 is about 21081.4824905650. The cubic root of 444428904 is about 763.1339335812.

The spelling of 444428904 in words is "four hundred forty-four million, four hundred twenty-eight thousand, nine hundred four".