855400600 has 48 divisors (see below), whose sum is σ = 2003387400. Its totient is φ = 339651840.

The previous prime is 855400597. The next prime is 855400603. The reversal of 855400600 is 6004558.

It is an interprime number because it is at equal distance from previous prime (855400597) and next prime (855400603).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855400603) 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, 11791 + ... + 43009.

Almost surely, 2^855400600 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855400600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1001693700).

855400600 is an abundant number, since it is smaller than the sum of its proper divisors (1147986800).

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

855400600 is a wasteful number, since it uses less digits than its factorization.

855400600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31372 (or 31363 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 855400600 is about 29247.2323476940. The cubic root of 855400600 is about 949.2702059022.

The spelling of 855400600 in words is "eight hundred fifty-five million, four hundred thousand, six hundred".