226469640 has 32 divisors (see below), whose sum is σ = 679409280. Its totient is φ = 60391872.

The previous prime is 226469603. The next prime is 226469647. The reversal of 226469640 is 46964622.

It is a super-4 number, since 4×226469640⁴ (a number of 35 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (226469647) 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, 943504 + ... + 943743.

It is an arithmetic number, because the mean of its divisors is an integer number (21231540).

Almost surely, 2^226469640 is an apocalyptic number.

226469640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226469640 is an abundant number, since it is smaller than the sum of its proper divisors (452939640).

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

226469640 is a wasteful number, since it uses less digits than its factorization.

226469640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887261 (or 1887257 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 226469640 is about 15048.9082660504. The cubic root of 226469640 is about 609.5415708219.

The spelling of 226469640 in words is "two hundred twenty-six million, four hundred sixty-nine thousand, six hundred forty".