855072384 has 64 divisors (see below), whose sum is σ = 2326726080. Its totient is φ = 278067200.

The previous prime is 855072353. The next prime is 855072401. The reversal of 855072384 is 483270558.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×855072384² = 1462297563758886912, which contains 22 as substring.

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, 11412 + ... + 42899.

It is an arithmetic number, because the mean of its divisors is an integer number (36355095).

Almost surely, 2^855072384 is an apocalyptic number.

It is an amenable number.

855072384 is an abundant number, since it is smaller than the sum of its proper divisors (1471653696).

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

855072384 is a wasteful number, since it uses less digits than its factorization.

855072384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54369 (or 54357 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 855072384 is about 29241.6207485153. The cubic root of 855072384 is about 949.1487791588.

The spelling of 855072384 in words is "eight hundred fifty-five million, seventy-two thousand, three hundred eighty-four".