219640396 has 6 divisors (see below), whose sum is σ = 384370700. Its totient is φ = 109820196.

The previous prime is 219640367. The next prime is 219640439. The reversal of 219640396 is 693046912.

219640396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27455046 + ... + 27455053.

Almost surely, 2^219640396 is an apocalyptic number.

It is an amenable number.

219640396 is a deficient number, since it is larger than the sum of its proper divisors (164730304).

219640396 is a wasteful number, since it uses less digits than its factorization.

219640396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54910103 (or 54910101 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 219640396 is about 14820.2697681250. The cubic root of 219640396 is about 603.3519759272.

The spelling of 219640396 in words is "two hundred nineteen million, six hundred forty thousand, three hundred ninety-six".