1834215864 has 64 divisors (see below), whose sum is σ = 4966012800. Its totient is φ = 561204096.

The previous prime is 1834215857. The next prime is 1834215871. The reversal of 1834215864 is 4685124381.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1834215857) and next prime (1834215871).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39427 + ... + 72269.

It is an arithmetic number, because the mean of its divisors is an integer number (77593950).

Almost surely, 2^1834215864 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 1834215864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2483006400).

1834215864 is an abundant number, since it is smaller than the sum of its proper divisors (3131796936).

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

1834215864 is a wasteful number, since it uses less digits than its factorization.

1834215864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33044 (or 33040 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 1834215864 is about 42827.7464268201. The cubic root of 1834215864 is about 1224.0997665273.

The spelling of 1834215864 in words is "one billion, eight hundred thirty-four million, two hundred fifteen thousand, eight hundred sixty-four".