219038855 has 16 divisors (see below), whose sum is σ = 301377024. Its totient is φ = 149707680.

The previous prime is 219038843. The next prime is 219038903. The reversal of 219038855 is 558830912.

It is not a de Polignac number, because 219038855 - 2¹⁶ = 218973319 is a prime.

It is a super-2 number, since 2×219038855² = 95956039999422050, which contains 22 as substring.

It is a Duffinian 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, 824 + ... + 20946.

It is an arithmetic number, because the mean of its divisors is an integer number (18836064).

Almost surely, 2^219038855 is an apocalyptic number.

219038855 is a deficient number, since it is larger than the sum of its proper divisors (82338169).

219038855 is a wasteful number, since it uses less digits than its factorization.

219038855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20446.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 219038855 is about 14799.9613175170. The cubic root of 219038855 is about 602.8006614484.

The spelling of 219038855 in words is "two hundred nineteen million, thirty-eight thousand, eight hundred fifty-five".