223458428 has 6 divisors (see below), whose sum is σ = 391052256. Its totient is φ = 111729212.

The previous prime is 223458413. The next prime is 223458439. The reversal of 223458428 is 824854322.

It is a junction number, because it is equal to n+sod(n) for n = 223458391 and 223458400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27932300 + ... + 27932307.

It is an arithmetic number, because the mean of its divisors is an integer number (65175376).

Almost surely, 2^223458428 is an apocalyptic number.

It is an amenable number.

223458428 is a deficient number, since it is larger than the sum of its proper divisors (167593828).

223458428 is a wasteful number, since it uses less digits than its factorization.

223458428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55864611 (or 55864609 counting only the distinct ones).

The product of its digits is 122880, while the sum is 38.

The square root of 223458428 is about 14948.5259473970. The cubic root of 223458428 is about 606.8279554789.

The spelling of 223458428 in words is "two hundred twenty-three million, four hundred fifty-eight thousand, four hundred twenty-eight".