6391225404 has 48 divisors (see below), whose sum is σ = 16623210240. Its totient is φ = 2123547120.

The previous prime is 6391225397. The next prime is 6391225411. The reversal of 6391225404 is 4045221936.

It is a happy number.

6391225404 is a `hidden beast` number, since 6 + 3 + 91 + 22 + 540 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (6391225397) and next prime (6391225411).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61554 + ... + 128729.

It is an arithmetic number, because the mean of its divisors is an integer number (346316880).

Almost surely, 2^6391225404 is an apocalyptic number.

It is an amenable number.

6391225404 is an abundant number, since it is smaller than the sum of its proper divisors (10231984836).

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

6391225404 is a wasteful number, since it uses less digits than its factorization.

6391225404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190607 (or 190599 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 6391225404 is about 79945.1399648534. The cubic root of 6391225404 is about 1855.7866439837.

The spelling of 6391225404 in words is "six billion, three hundred ninety-one million, two hundred twenty-five thousand, four hundred four".