226499021 has 8 divisors (see below), whose sum is σ = 264139200. Its totient is φ = 194141724.

The previous prime is 226498919. The next prime is 226499027. The reversal of 226499021 is 120994622.

It is not a de Polignac number, because 226499021 - 2²² = 222304717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226499027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329831 + ... + 330516.

It is an arithmetic number, because the mean of its divisors is an integer number (33017400).

Almost surely, 2^226499021 is an apocalyptic number.

It is an amenable number.

226499021 is a deficient number, since it is larger than the sum of its proper divisors (37640179).

226499021 is an frugal number, since it uses more digits than its factorization.

226499021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660368 (or 660354 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 226499021 is about 15049.8844181608. The cubic root of 226499021 is about 609.5679292725.

The spelling of 226499021 in words is "two hundred twenty-six million, four hundred ninety-nine thousand, twenty-one".