2640207446 has 16 divisors (see below), whose sum is σ = 4106847264. Its totient is φ = 1271951424.

The previous prime is 2640207433. The next prime is 2640207481. The reversal of 2640207446 is 6447020462.

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 7 ways as a sum of consecutive naturals, for example, 165575 + ... + 180818.

It is an arithmetic number, because the mean of its divisors is an integer number (256677954).

Almost surely, 2^2640207446 is an apocalyptic number.

2640207446 is a deficient number, since it is larger than the sum of its proper divisors (1466639818).

2640207446 is a wasteful number, since it uses less digits than its factorization.

2640207446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346535.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 2640207446 is about 51382.9489811552. The cubic root of 2640207446 is about 1382.1208455505.

The spelling of 2640207446 in words is "two billion, six hundred forty million, two hundred seven thousand, four hundred forty-six".