1018994446 has 8 divisors (see below), whose sum is σ = 1529230320. Its totient is φ = 509251008.

The previous prime is 1018994419. The next prime is 1018994497. The reversal of 1018994446 is 6444998101.

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 = 1018994396 and 1018994405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117891 + ... + 126238.

It is an arithmetic number, because the mean of its divisors is an integer number (191153790).

Almost surely, 2^1018994446 is an apocalyptic number.

1018994446 is a deficient number, since it is larger than the sum of its proper divisors (510235874).

1018994446 is a wasteful number, since it uses less digits than its factorization.

1018994446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246218.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 1018994446 is about 31921.6924050089. The cubic root of 1018994446 is about 1006.2918120764.

The spelling of 1018994446 in words is "one billion, eighteen million, nine hundred ninety-four thousand, four hundred forty-six".