220000438 has 32 divisors (see below), whose sum is σ = 391210560. Its totient is φ = 90787200.

The previous prime is 220000423. The next prime is 220000457. The reversal of 220000438 is 834000022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284220 + ... + 284992.

It is an arithmetic number, because the mean of its divisors is an integer number (12225330).

Almost surely, 2^220000438 is an apocalyptic number.

220000438 is a deficient number, since it is larger than the sum of its proper divisors (171210122).

220000438 is a wasteful number, since it uses less digits than its factorization.

220000438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 220000438 is about 14832.4117391610. The cubic root of 220000438 is about 603.6814743042.

The spelling of 220000438 in words is "two hundred twenty million, four hundred thirty-eight", and thus it is an aban number.