944454864 has 20 divisors (see below), whose sum is σ = 2439841856. Its totient is φ = 314818272.

The previous prime is 944454817. The next prime is 944454871. The reversal of 944454864 is 468454449.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 19676143 = 944454864 / (9 + 4 + 4 + 4 + 5 + 4 + 8 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9838024 + ... + 9838119.

Almost surely, 2^944454864 is an apocalyptic number.

It is an amenable number.

944454864 is an abundant number, since it is smaller than the sum of its proper divisors (1495386992).

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

944454864 is a wasteful number, since it uses less digits than its factorization.

944454864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19676154 (or 19676148 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 48.

The square root of 944454864 is about 30731.9843810972. The cubic root of 944454864 is about 981.1311608876.

The spelling of 944454864 in words is "nine hundred forty-four million, four hundred fifty-four thousand, eight hundred sixty-four".