1854538464 has 48 divisors (see below), whose sum is σ = 4871074320. Its totient is φ = 617809920.

The previous prime is 1854538397. The next prime is 1854538559. The reversal of 1854538464 is 4648354581.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190024 + ... + 199544.

It is an arithmetic number, because the mean of its divisors is an integer number (101480715).

Almost surely, 2^1854538464 is an apocalyptic number.

It is an amenable number.

1854538464 is an abundant number, since it is smaller than the sum of its proper divisors (3016535856).

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

1854538464 is a wasteful number, since it uses less digits than its factorization.

1854538464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11563 (or 11555 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 48.

The square root of 1854538464 is about 43064.3525900483. The cubic root of 1854538464 is about 1228.6040664229.

The spelling of 1854538464 in words is "one billion, eight hundred fifty-four million, five hundred thirty-eight thousand, four hundred sixty-four".