1918465248 has 144 divisors (see below), whose sum is σ = 5876542224. Its totient is φ = 546416640.

The previous prime is 1918465247. The next prime is 1918465261. The reversal of 1918465248 is 8425648191.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1918465197 and 1918465206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918465243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2902038 + ... + 2902698.

It is an arithmetic number, because the mean of its divisors is an integer number (40809321).

Almost surely, 2^1918465248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1918465248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2938271112).

1918465248 is an abundant number, since it is smaller than the sum of its proper divisors (3958076976).

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

1918465248 is a wasteful number, since it uses less digits than its factorization.

1918465248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305 (or 1290 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 1918465248 is about 43800.2882182298. The cubic root of 1918465248 is about 1242.5617452619.

The spelling of 1918465248 in words is "one billion, nine hundred eighteen million, four hundred sixty-five thousand, two hundred forty-eight".