219920902 has 4 divisors (see below), whose sum is σ = 329881356. Its totient is φ = 109960450.

The previous prime is 219920893. The next prime is 219920971. The reversal of 219920902 is 209029912.

219920902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

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, 54980224 + ... + 54980227.

It is an arithmetic number, because the mean of its divisors is an integer number (82470339).

Almost surely, 2^219920902 is an apocalyptic number.

219920902 is a deficient number, since it is larger than the sum of its proper divisors (109960454).

219920902 is a wasteful number, since it uses less digits than its factorization.

219920902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109960453.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 219920902 is about 14829.7303414459. The cubic root of 219920902 is about 603.6087165747.

The spelling of 219920902 in words is "two hundred nineteen million, nine hundred twenty thousand, nine hundred two".