888649642 has 4 divisors (see below), whose sum is σ = 1332974466. Its totient is φ = 444324820.

The previous prime is 888649637. The next prime is 888649649. The reversal of 888649642 is 246946888.

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., 653364721 + 235284921 = 25561^2 + 15339^2 .

It is not an unprimeable number, because it can be changed into a prime (888649649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222162409 + ... + 222162412.

Almost surely, 2^888649642 is an apocalyptic number.

888649642 is a deficient number, since it is larger than the sum of its proper divisors (444324824).

888649642 is a wasteful number, since it uses less digits than its factorization.

888649642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444324823.

The product of its digits is 5308416, while the sum is 55.

The square root of 888649642 is about 29810.2271376788. The cubic root of 888649642 is about 961.4134423671.

The spelling of 888649642 in words is "eight hundred eighty-eight million, six hundred forty-nine thousand, six hundred forty-two".