1080973990 has 16 divisors (see below), whose sum is σ = 1991004048. Its totient is φ = 422333856.

The previous prime is 1080973967. The next prime is 1080973997. The reversal of 1080973990 is 993790801.

It is a self number, because there is not a number n which added to its sum of digits gives 1080973990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080973997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256517 + ... + 1257376.

It is an arithmetic number, because the mean of its divisors is an integer number (124437753).

Almost surely, 2^1080973990 is an apocalyptic number.

1080973990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1080973990 is a deficient number, since it is larger than the sum of its proper divisors (910030058).

1080973990 is a wasteful number, since it uses less digits than its factorization.

1080973990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513943.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 1080973990 is about 32878.1688967010. The cubic root of 1080973990 is about 1026.2939011635.

The spelling of 1080973990 in words is "one billion, eighty million, nine hundred seventy-three thousand, nine hundred ninety".