219890072 has 16 divisors (see below), whose sum is σ = 412808400. Its totient is φ = 109807840.

The previous prime is 219890071. The next prime is 219890113. The reversal of 219890072 is 270098912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219890071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10172 + ... + 23307.

It is an arithmetic number, because the mean of its divisors is an integer number (25800525).

Almost surely, 2^219890072 is an apocalyptic number.

It is an amenable number.

219890072 is a deficient number, since it is larger than the sum of its proper divisors (192918328).

219890072 is a wasteful number, since it uses less digits than its factorization.

219890072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34306 (or 34302 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 219890072 is about 14828.6908390458. The cubic root of 219890072 is about 603.5805092720.

The spelling of 219890072 in words is "two hundred nineteen million, eight hundred ninety thousand, seventy-two".