1918700748 has 18 divisors (see below), whose sum is σ = 4850049204. Its totient is φ = 639566904.

The previous prime is 1918700743. The next prime is 1918700761. The reversal of 1918700748 is 8470078191.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1918700741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26648586 + ... + 26648657.

It is an arithmetic number, because the mean of its divisors is an integer number (269447178).

Almost surely, 2^1918700748 is an apocalyptic number.

1918700748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1918700748 is an abundant number, since it is smaller than the sum of its proper divisors (2931348456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1918700748 is a wasteful number, since it uses less digits than its factorization.

1918700748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53297253 (or 53297248 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 1918700748 is about 43802.9764742078. The cubic root of 1918700748 is about 1242.6125864779.

The spelling of 1918700748 in words is "one billion, nine hundred eighteen million, seven hundred thousand, seven hundred forty-eight".