1918984316 has 6 divisors (see below), whose sum is σ = 3358222560. Its totient is φ = 959492156.

The previous prime is 1918984307. The next prime is 1918984321. The reversal of 1918984316 is 6134898191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239873036 + ... + 239873043.

It is an arithmetic number, because the mean of its divisors is an integer number (559703760).

Almost surely, 2^1918984316 is an apocalyptic number.

It is an amenable number.

1918984316 is a deficient number, since it is larger than the sum of its proper divisors (1439238244).

1918984316 is a wasteful number, since it uses less digits than its factorization.

1918984316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479746083 (or 479746081 counting only the distinct ones).

The product of its digits is 373248, while the sum is 50.

The square root of 1918984316 is about 43806.2132122830. The cubic root of 1918984316 is about 1242.6737993948.

The spelling of 1918984316 in words is "one billion, nine hundred eighteen million, nine hundred eighty-four thousand, three hundred sixteen".