6440600046 has 32 divisors (see below), whose sum is σ = 13271737248. Its totient is φ = 2082383360.

The previous prime is 6440600041. The next prime is 6440600141. The reversal of 6440600046 is 6400060446.

It is a junction number, because it is equal to n+sod(n) for n = 6440599986 and 6440600022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6440600041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33111 + ... + 118226.

It is an arithmetic number, because the mean of its divisors is an integer number (414741789).

Almost surely, 2^6440600046 is an apocalyptic number.

6440600046 is an abundant number, since it is smaller than the sum of its proper divisors (6831137202).

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

6440600046 is a wasteful number, since it uses less digits than its factorization.

6440600046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151556.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 6440600046 is about 80253.3491263760. The cubic root of 6440600046 is about 1860.5532756884.

The spelling of 6440600046 in words is "six billion, four hundred forty million, six hundred thousand, forty-six".