1106640642 has 16 divisors (see below), whose sum is σ = 2218087872. Its totient is φ = 368079120.

The previous prime is 1106640637. The next prime is 1106640643. The reversal of 1106640642 is 2460466011.

It is not an unprimeable number, because it can be changed into a prime (1106640643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197278 + ... + 202809.

It is an arithmetic number, because the mean of its divisors is an integer number (138630492).

Almost surely, 2^1106640642 is an apocalyptic number.

1106640642 is an abundant number, since it is smaller than the sum of its proper divisors (1111447230).

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

1106640642 is a wasteful number, since it uses less digits than its factorization.

1106640642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400553.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1106640642 is about 33266.2087109427. The cubic root of 1106640642 is about 1034.3532228320.

The spelling of 1106640642 in words is "one billion, one hundred six million, six hundred forty thousand, six hundred forty-two".