1648440046 has 16 divisors (see below), whose sum is σ = 2698800048. Its totient is φ = 748915200.

The previous prime is 1648440041. The next prime is 1648440047. The reversal of 1648440046 is 6400448461.

It is a junction number, because it is equal to n+sod(n) for n = 1648439987 and 1648440014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648440041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28756 + ... + 64216.

It is an arithmetic number, because the mean of its divisors is an integer number (168675003).

Almost surely, 2^1648440046 is an apocalyptic number.

1648440046 is a deficient number, since it is larger than the sum of its proper divisors (1050360002).

1648440046 is a wasteful number, since it uses less digits than its factorization.

1648440046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37587.

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 1648440046 is about 40600.9857762099. The cubic root of 1648440046 is about 1181.2932402786.

The spelling of 1648440046 in words is "one billion, six hundred forty-eight million, four hundred forty thousand, forty-six".