444294428 has 12 divisors (see below), whose sum is σ = 788466672. Its totient is φ = 219018240.

The previous prime is 444294421. The next prime is 444294443. The reversal of 444294428 is 824492444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444294421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781925 + ... + 782492.

It is an arithmetic number, because the mean of its divisors is an integer number (65705556).

Almost surely, 2^444294428 is an apocalyptic number.

It is an amenable number.

444294428 is a deficient number, since it is larger than the sum of its proper divisors (344172244).

444294428 is a wasteful number, since it uses less digits than its factorization.

444294428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564492 (or 1564490 counting only the distinct ones).

The product of its digits is 294912, while the sum is 41.

The square root of 444294428 is about 21078.2928151214. The cubic root of 444294428 is about 763.0569557261.

The spelling of 444294428 in words is "four hundred forty-four million, two hundred ninety-four thousand, four hundred twenty-eight".