220231408 has 10 divisors (see below), whose sum is σ = 426698384. Its totient is φ = 110115696.

The previous prime is 220231393. The next prime is 220231441. The reversal of 220231408 is 804132022.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 6882216 + ... + 6882247.

Almost surely, 2^220231408 is an apocalyptic number.

It is an amenable number.

220231408 is a deficient number, since it is larger than the sum of its proper divisors (206466976).

220231408 is a wasteful number, since it uses less digits than its factorization.

220231408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13764471 (or 13764465 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 220231408 is about 14840.1956860413. The cubic root of 220231408 is about 603.8926610712.

The spelling of 220231408 in words is "two hundred twenty million, two hundred thirty-one thousand, four hundred eight".