219920038 has 24 divisors (see below), whose sum is σ = 360732528. Its totient is φ = 100500192.

The previous prime is 219920033. The next prime is 219920047. The reversal of 219920038 is 830029912.

It is a super-2 number, since 2×219920038² = 96729646227842888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 219919985 and 219920012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219920033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31656 + ... + 37972.

It is an arithmetic number, because the mean of its divisors is an integer number (15030522).

Almost surely, 2^219920038 is an apocalyptic number.

219920038 is a deficient number, since it is larger than the sum of its proper divisors (140812490).

219920038 is a wasteful number, since it uses less digits than its factorization.

219920038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448 (or 6435 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 219920038 is about 14829.7012107460. The cubic root of 219920038 is about 603.6079261108.

The spelling of 219920038 in words is "two hundred nineteen million, nine hundred twenty thousand, thirty-eight".