849190642 has 8 divisors (see below), whose sum is σ = 1300887936. Its totient is φ = 415561332.

The previous prime is 849190637. The next prime is 849190669. The reversal of 849190642 is 246091948.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×849190642² = 1442249492920744328, which contains 22 as substring.

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, 4516878 + ... + 4517065.

It is an arithmetic number, because the mean of its divisors is an integer number (162610992).

Almost surely, 2^849190642 is an apocalyptic number.

849190642 is a deficient number, since it is larger than the sum of its proper divisors (451697294).

849190642 is a wasteful number, since it uses less digits than its factorization.

849190642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9033992.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 849190642 is about 29140.8757932908. The cubic root of 849190642 is about 946.9674832271.

It can be divided in two parts, 8491906 and 42, that added together give a palindrome (8491948).

The spelling of 849190642 in words is "eight hundred forty-nine million, one hundred ninety thousand, six hundred forty-two".