2209928382640 has 40 divisors (see below), whose sum is σ = 5605181990928. Its totient is φ = 803610320640.

The previous prime is 2209928382593. The next prime is 2209928382713. The reversal of 2209928382640 is 462838299022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255640247 + ... + 1255642006.

Almost surely, 2^{2209928382640} is an apocalyptic number.

2209928382640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2209928382640 is an abundant number, since it is smaller than the sum of its proper divisors (3395253608288).

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

2209928382640 is a wasteful number, since it uses less digits than its factorization.

2209928382640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511282277 (or 2511282271 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 2209928382640 in words is "two trillion, two hundred nine billion, nine hundred twenty-eight million, three hundred eighty-two thousand, six hundred forty".