8742444 has 12 divisors (see below), whose sum is σ = 20399064. Its totient is φ = 2914144.

The previous prime is 8742421. The next prime is 8742449. The reversal of 8742444 is 4442478.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (8742449) 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, 364257 + ... + 364280.

It is an arithmetic number, because the mean of its divisors is an integer number (1699922).

Almost surely, 2^8742444 is an apocalyptic number.

It is an amenable number.

8742444 is an abundant number, since it is smaller than the sum of its proper divisors (11656620).

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

8742444 is a wasteful number, since it uses less digits than its factorization.

8742444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728544 (or 728542 counting only the distinct ones).

The product of its digits is 28672, while the sum is 33.

The square root of 8742444 is about 2956.7624185923. The cubic root of 8742444 is about 206.0049328005.

The spelling of 8742444 in words is "eight million, seven hundred forty-two thousand, four hundred forty-four".