226771520 has 112 divisors (see below), whose sum is σ = 562904640. Its totient is φ = 86943744.

The previous prime is 226771499. The next prime is 226771529. The reversal of 226771520 is 25177622.

226771520 = T₁₄₉ + T₁₅₀ + ... + T₁₁₀₈.

It is a super-2 number, since 2×226771520² = 102850644566220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226771529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1266791 + ... + 1266969.

Almost surely, 2^226771520 is an apocalyptic number.

226771520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226771520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281452320).

226771520 is an abundant number, since it is smaller than the sum of its proper divisors (336133120).

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

226771520 is a wasteful number, since it uses less digits than its factorization.

226771520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 226771520 is about 15058.9348892941. The cubic root of 226771520 is about 609.8122865933.

The spelling of 226771520 in words is "two hundred twenty-six million, seven hundred seventy-one thousand, five hundred twenty".