2223400085449 has 27 divisors (see below), whose sum is σ = 2291185838637. Its totient is φ = 2157607971288.

The previous prime is 2223400085447. The next prime is 2223400085453. The reversal of 2223400085449 is 9445800043222.

It is a happy number.

The square root of 2223400085449 is 1491107.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2223400085449 - 2¹ = 2223400085447 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2223400085447) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11172864652 + ... + 11172864850.

Almost surely, 2^{2223400085449} is an apocalyptic number.

2223400085449 is the 1491107-th square number.

2223400085449 is the 745554-th centered octagonal number.

It is an amenable number.

2223400085449 is a deficient number, since it is larger than the sum of its proper divisors (67785753188).

2223400085449 is an frugal number, since it uses more digits than its factorization.

2223400085449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 2223400085449 in words is "two trillion, two hundred twenty-three billion, four hundred million, eighty-five thousand, four hundred forty-nine".