6404076 has 96 divisors (see below), whose sum is σ = 19514880. Its totient is φ = 1778112.

The previous prime is 6404063. The next prime is 6404089. The reversal of 6404076 is 6704046.

It is an interprime number because it is at equal distance from previous prime (6404063) and next prime (6404089).

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32410 + ... + 32606.

It is an arithmetic number, because the mean of its divisors is an integer number (203280).

Almost surely, 2^6404076 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 6404076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9757440).

6404076 is an abundant number, since it is smaller than the sum of its proper divisors (13110804).

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

6404076 is a wasteful number, since it uses less digits than its factorization.

6404076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 6404076 is about 2530.6275901444. The cubic root of 6404076 is about 185.7029598052.

The spelling of 6404076 in words is "six million, four hundred four thousand, seventy-six".