1854434364 has 12 divisors (see below), whose sum is σ = 4327013544. Its totient is φ = 618144784.

The previous prime is 1854434357. The next prime is 1854434381. The reversal of 1854434364 is 4634344581.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77268087 + ... + 77268110.

It is an arithmetic number, because the mean of its divisors is an integer number (360584462).

Almost surely, 2^1854434364 is an apocalyptic number.

It is an amenable number.

1854434364 is an abundant number, since it is smaller than the sum of its proper divisors (2472579180).

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

1854434364 is a wasteful number, since it uses less digits than its factorization.

1854434364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154536204 (or 154536202 counting only the distinct ones).

The product of its digits is 552960, while the sum is 42.

The square root of 1854434364 is about 43063.1439168113. The cubic root of 1854434364 is about 1228.5810777604.

The spelling of 1854434364 in words is "one billion, eight hundred fifty-four million, four hundred thirty-four thousand, three hundred sixty-four".