855073944 has 48 divisors (see below), whose sum is σ = 2416518000. Its totient is φ = 272631744.

The previous prime is 855073943. The next prime is 855073949. The reversal of 855073944 is 449370558.

855073944 is a `hidden beast` number, since 8 + 550 + 7 + 3 + 94 + 4 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 855073944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855073943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 256519 + ... + 259830.

It is an arithmetic number, because the mean of its divisors is an integer number (50344125).

Almost surely, 2^855073944 is an apocalyptic number.

It is an amenable number.

855073944 is an abundant number, since it is smaller than the sum of its proper divisors (1561444056).

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

855073944 is a wasteful number, since it uses less digits than its factorization.

855073944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516384 (or 516377 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 855073944 is about 29241.6474228112. The cubic root of 855073944 is about 949.1493563697.

The spelling of 855073944 in words is "eight hundred fifty-five million, seventy-three thousand, nine hundred forty-four".