1816667468 has 48 divisors (see below), whose sum is σ = 3984519168. Its totient is φ = 704064000.

The previous prime is 1816667467. The next prime is 1816667513. The reversal of 1816667468 is 8647666181.

It is not an unprimeable number, because it can be changed into a prime (1816667467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43388 + ... + 74268.

It is an arithmetic number, because the mean of its divisors is an integer number (83010816).

Almost surely, 2^1816667468 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 1816667468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1992259584).

1816667468 is an abundant number, since it is smaller than the sum of its proper divisors (2167851700).

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

1816667468 is a wasteful number, since it uses less digits than its factorization.

1816667468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31094 (or 31092 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 53.

The square root of 1816667468 is about 42622.3822421976. The cubic root of 1816667468 is about 1220.1834956462.

The spelling of 1816667468 in words is "one billion, eight hundred sixteen million, six hundred sixty-seven thousand, four hundred sixty-eight".