8793390442 has 4 divisors (see below), whose sum is σ = 13190085666. Its totient is φ = 4396695220.

The previous prime is 8793390421. The next prime is 8793390443. The reversal of 8793390442 is 2440933978.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8763019321 + 30371121 = 93611^2 + 5511^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (8793390443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2198347609 + ... + 2198347612.

Almost surely, 2^8793390442 is an apocalyptic number.

8793390442 is a deficient number, since it is larger than the sum of its proper divisors (4396695224).

8793390442 is a wasteful number, since it uses less digits than its factorization.

8793390442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396695223.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 8793390442 is about 93773.0795164582. The cubic root of 8793390442 is about 2064.0432139273.

The spelling of 8793390442 in words is "eight billion, seven hundred ninety-three million, three hundred ninety thousand, four hundred forty-two".