1018493378 has 16 divisors (see below), whose sum is σ = 1746671040. Its totient is φ = 436326576.

The previous prime is 1018493363. The next prime is 1018493381. The reversal of 1018493378 is 8733948101.

It is a super-2 number, since 2×1018493378² = 2074657522059701768, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27008 + ... + 52596.

It is an arithmetic number, because the mean of its divisors is an integer number (109166940).

Almost surely, 2^1018493378 is an apocalyptic number.

1018493378 is a deficient number, since it is larger than the sum of its proper divisors (728177662).

1018493378 is a wasteful number, since it uses less digits than its factorization.

1018493378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28441.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1018493378 is about 31913.8430465527. The cubic root of 1018493378 is about 1006.1268444468.

The spelling of 1018493378 in words is "one billion, eighteen million, four hundred ninety-three thousand, three hundred seventy-eight".