1018641338 has 64 divisors (see below), whose sum is σ = 1950842880. Its totient is φ = 391780800.

The previous prime is 1018641317. The next prime is 1018641353. The reversal of 1018641338 is 8331468101.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1018641298 and 1018641307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165431 + ... + 171477.

It is an arithmetic number, because the mean of its divisors is an integer number (30481920).

Almost surely, 2^1018641338 is an apocalyptic number.

1018641338 is a deficient number, since it is larger than the sum of its proper divisors (932201542).

1018641338 is a wasteful number, since it uses less digits than its factorization.

1018641338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6123.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1018641338 is about 31916.1610786761. The cubic root of 1018641338 is about 1006.1755632449.

The spelling of 1018641338 in words is "one billion, eighteen million, six hundred forty-one thousand, three hundred thirty-eight".