6485400 has 96 divisors (see below), whose sum is σ = 22357200. Its totient is φ = 1728000.

The previous prime is 6485387. The next prime is 6485407. The reversal of 6485400 is 45846.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6485407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4800 + ... + 6000.

Almost surely, 2^6485400 is an apocalyptic number.

6485400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6485400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11178600).

6485400 is an abundant number, since it is smaller than the sum of its proper divisors (15871800).

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

6485400 is a wasteful number, since it uses less digits than its factorization.

6485400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 6485400 is about 2546.6448515645. The cubic root of 6485400 is about 186.4857231870.

The spelling of 6485400 in words is "six million, four hundred eighty-five thousand, four hundred".