1078604990 has 8 divisors (see below), whose sum is σ = 1941489000. Its totient is φ = 431441992.

The previous prime is 1078604963. The next prime is 1078604993. The reversal of 1078604990 is 994068701.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078604993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53930240 + ... + 53930259.

It is an arithmetic number, because the mean of its divisors is an integer number (242686125).

Almost surely, 2^1078604990 is an apocalyptic number.

1078604990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1078604990 is a deficient number, since it is larger than the sum of its proper divisors (862884010).

1078604990 is a wasteful number, since it uses less digits than its factorization.

1078604990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107860506.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1078604990 is about 32842.1221908695. The cubic root of 1078604990 is about 1025.5436307186.

The spelling of 1078604990 in words is "one billion, seventy-eight million, six hundred four thousand, nine hundred ninety".