6470440746 has 64 divisors (see below), whose sum is σ = 16160947200. Its totient is φ = 1677836160.

The previous prime is 6470440729. The next prime is 6470440783.

6470440746 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 6470440698 and 6470440707.

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, 273705 + ... + 296403.

It is an arithmetic number, because the mean of its divisors is an integer number (252514800).

Almost surely, 2^6470440746 is an apocalyptic number.

6470440746 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6470440746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8080473600).

6470440746 is an abundant number, since it is smaller than the sum of its proper divisors (9690506454).

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

6470440746 is a wasteful number, since it uses less digits than its factorization.

6470440746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23339.

The product of its (nonzero) digits is 451584, while the sum is 42.

The square root of 6470440746 is about 80439.0498825042. The cubic root of 6470440746 is about 1863.4222985554.

The spelling of 6470440746 in words is "six billion, four hundred seventy million, four hundred forty thousand, seven hundred forty-six".