220855438 has 8 divisors (see below), whose sum is σ = 339363360. Its totient is φ = 107734320.

The previous prime is 220855429. The next prime is 220855451. The reversal of 220855438 is 834558022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 220855397 and 220855406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1346598 + ... + 1346761.

It is an arithmetic number, because the mean of its divisors is an integer number (42420420).

Almost surely, 2^220855438 is an apocalyptic number.

220855438 is a deficient number, since it is larger than the sum of its proper divisors (118507922).

220855438 is a wasteful number, since it uses less digits than its factorization.

220855438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693402.

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 220855438 is about 14861.2058057211. The cubic root of 220855438 is about 604.4625037431.

The spelling of 220855438 in words is "two hundred twenty million, eight hundred fifty-five thousand, four hundred thirty-eight".