1093978642 has 8 divisors (see below), whose sum is σ = 1653494832. Its totient is φ = 542813700.

The previous prime is 1093978597. The next prime is 1093978643. The reversal of 1093978642 is 2468793901.

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

It is not an unprimeable number, because it can be changed into a prime (1093978643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2087484 + ... + 2088007.

It is an arithmetic number, because the mean of its divisors is an integer number (206686854).

Almost surely, 2^1093978642 is an apocalyptic number.

1093978642 is a deficient number, since it is larger than the sum of its proper divisors (559516190).

1093978642 is a wasteful number, since it uses less digits than its factorization.

1093978642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175624.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 1093978642 is about 33075.3479497949. The cubic root of 1093978642 is about 1030.3931141529.

The spelling of 1093978642 in words is "one billion, ninety-three million, nine hundred seventy-eight thousand, six hundred forty-two".