4001342646 has 32 divisors (see below), whose sum is σ = 9332582400. Its totient is φ = 1143240168.

The previous prime is 4001342633. The next prime is 4001342651. The reversal of 4001342646 is 6462431004.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 970086 + ... + 974201.

It is an arithmetic number, because the mean of its divisors is an integer number (291643200).

Almost surely, 2^4001342646 is an apocalyptic number.

4001342646 is an abundant number, since it is smaller than the sum of its proper divisors (5331239754).

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

4001342646 is a wasteful number, since it uses less digits than its factorization.

4001342646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944313 (or 1944299 counting only the distinct ones).

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

The square root of 4001342646 is about 63256.1668614215. The cubic root of 4001342646 is about 1587.5786419057.

The spelling of 4001342646 in words is "four billion, one million, three hundred forty-two thousand, six hundred forty-six".