226576421 has 4 divisors (see below), whose sum is σ = 228306144. Its totient is φ = 224846700.

The previous prime is 226576411. The next prime is 226576457. The reversal of 226576421 is 124675622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124675622 = 2 ⋅62337811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226576421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226576411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864665 + ... + 864926.

It is an arithmetic number, because the mean of its divisors is an integer number (57076536).

Almost surely, 2^226576421 is an apocalyptic number.

It is an amenable number.

226576421 is a deficient number, since it is larger than the sum of its proper divisors (1729723).

226576421 is a wasteful number, since it uses less digits than its factorization.

226576421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729722.

The product of its digits is 40320, while the sum is 35.

The square root of 226576421 is about 15052.4556468372. The cubic root of 226576421 is about 609.6373558927.

The spelling of 226576421 in words is "two hundred twenty-six million, five hundred seventy-six thousand, four hundred twenty-one".