855400344 has 32 divisors (see below), whose sum is σ = 2140303920. Its totient is φ = 284893056.

The previous prime is 855400331. The next prime is 855400393. The reversal of 855400344 is 443004558.

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, 15282 + ... + 44094.

Almost surely, 2^855400344 is an apocalyptic number.

It is an amenable number.

855400344 is an abundant number, since it is smaller than the sum of its proper divisors (1284903576).

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

855400344 is a wasteful number, since it uses less digits than its factorization.

855400344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30059 (or 30055 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 855400344 is about 29247.2279712112. The cubic root of 855400344 is about 949.2701112046.

The spelling of 855400344 in words is "eight hundred fifty-five million, four hundred thousand, three hundred forty-four".