226385437 has 4 divisors (see below), whose sum is σ = 238300480. Its totient is φ = 214470396.

The previous prime is 226385431. The next prime is 226385449. The reversal of 226385437 is 734583622.

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: 734583622 = 2 ⋅367291811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226385437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226385437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226385431) 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, 5957493 + ... + 5957530.

It is an arithmetic number, because the mean of its divisors is an integer number (59575120).

Almost surely, 2^226385437 is an apocalyptic number.

It is an amenable number.

226385437 is a deficient number, since it is larger than the sum of its proper divisors (11915043).

226385437 is a wasteful number, since it uses less digits than its factorization.

226385437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11915042.

The product of its digits is 241920, while the sum is 40.

The square root of 226385437 is about 15046.1103611531. The cubic root of 226385437 is about 609.4660175141.

The spelling of 226385437 in words is "two hundred twenty-six million, three hundred eighty-five thousand, four hundred thirty-seven".