226640404446 has 16 divisors (see below), whose sum is σ = 455044550544. Its totient is φ = 75252844544.

The previous prime is 226640404409. The next prime is 226640404451. The reversal of 226640404446 is 644404046622.

It is a junction number, because it is equal to n+sod(n) for n = 226640404398 and 226640404407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73487565 + ... + 73490648.

It is an arithmetic number, because the mean of its divisors is an integer number (28440284409).

Almost surely, 2^226640404446 is an apocalyptic number.

226640404446 is an abundant number, since it is smaller than the sum of its proper divisors (228404146098).

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

226640404446 is a wasteful number, since it uses less digits than its factorization.

226640404446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146978475.

The product of its (nonzero) digits is 884736, while the sum is 42.

The spelling of 226640404446 in words is "two hundred twenty-six billion, six hundred forty million, four hundred four thousand, four hundred forty-six".