226448329890 has 32 divisors (see below), whose sum is σ = 556114971456. Its totient is φ = 58981890240.

The previous prime is 226448329889. The next prime is 226448329981. The reversal of 226448329890 is 98923844622.

It is a happy number.

It is a super-2 number, since 2×226448329890² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 226448329890.

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, 87769381 + ... + 87771960.

It is an arithmetic number, because the mean of its divisors is an integer number (17378592858).

Almost surely, 2^226448329890 is an apocalyptic number.

226448329890 is an abundant number, since it is smaller than the sum of its proper divisors (329666641566).

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

226448329890 is a wasteful number, since it uses less digits than its factorization.

226448329890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175541394.

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 226448329890 in words is "two hundred twenty-six billion, four hundred forty-eight million, three hundred twenty-nine thousand, eight hundred ninety".