1090791946 has 8 divisors (see below), whose sum is σ = 1636733700. Its totient is φ = 545214048.

The previous prime is 1090791943. The next prime is 1090791953. The reversal of 1090791946 is 6491970901.

It can be written as a sum of positive squares in 2 ways, for example, as 1031116321 + 59675625 = 32111^2 + 7725^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1090791896 and 1090791905.

It is not an unprimeable number, because it can be changed into a prime (1090791943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83341 + ... + 95536.

Almost surely, 2^1090791946 is an apocalyptic number.

1090791946 is a deficient number, since it is larger than the sum of its proper divisors (545941754).

1090791946 is a wasteful number, since it uses less digits than its factorization.

1090791946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181928.

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

The square root of 1090791946 is about 33027.1395370535. The cubic root of 1090791946 is about 1029.3916494315.

The spelling of 1090791946 in words is "one billion, ninety million, seven hundred ninety-one thousand, nine hundred forty-six".