6446900 has 36 divisors (see below), whose sum is σ = 14603232. Its totient is φ = 2465760.

The previous prime is 6446863. The next prime is 6446929. The reversal of 6446900 is 96446.

It is a super-2 number, since 2×6446900² = 83125039220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 899 + ... + 3701.

Almost surely, 2^6446900 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 6446900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7301616).

6446900 is an abundant number, since it is smaller than the sum of its proper divisors (8156332).

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

6446900 is a wasteful number, since it uses less digits than its factorization.

6446900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840 (or 2833 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6446900 is about 2539.0746345864. The cubic root of 6446900 is about 186.1159719199.

It can be divided in two parts, 64 and 46900, that added together give a palindrome (46964).

The spelling of 6446900 in words is "six million, four hundred forty-six thousand, nine hundred".