2204206406440 has 64 divisors (see below), whose sum is σ = 5101378704000. Its totient is φ = 856527038208.

The previous prime is 2204206406393. The next prime is 2204206406483. The reversal of 2204206406440 is 446046024022.

It is a super-2 number, since 2×2204206406440² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2204206406396 and 2204206406405.

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, 193390 + ... + 2108509.

It is an arithmetic number, because the mean of its divisors is an integer number (79709042250).

Almost surely, 2^{2204206406440} is an apocalyptic number.

2204206406440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204206406440 is an abundant number, since it is smaller than the sum of its proper divisors (2897172297560).

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

2204206406440 is a wasteful number, since it uses less digits than its factorization.

2204206406440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302594 (or 2302590 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

The spelling of 2204206406440 in words is "two trillion, two hundred four billion, two hundred six million, four hundred six thousand, four hundred forty".