226553640 has 32 divisors (see below), whose sum is σ = 679661280. Its totient is φ = 60414272.

The previous prime is 226553633. The next prime is 226553653. The reversal of 226553640 is 46355622.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943854 + ... + 944093.

It is an arithmetic number, because the mean of its divisors is an integer number (21239415).

Almost surely, 2^226553640 is an apocalyptic number.

226553640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226553640 is an abundant number, since it is smaller than the sum of its proper divisors (453107640).

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

226553640 is a wasteful number, since it uses less digits than its factorization.

226553640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887961 (or 1887957 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 226553640 is about 15051.6989074323. The cubic root of 226553640 is about 609.6169233251.

The spelling of 226553640 in words is "two hundred twenty-six million, five hundred fifty-three thousand, six hundred forty".