219902442 has 16 divisors (see below), whose sum is σ = 446369952. Its totient is φ = 72206640.

The previous prime is 219902413. The next prime is 219902443. The reversal of 219902442 is 244209912.

It is not an unprimeable number, because it can be changed into a prime (219902443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273109 + ... + 273912.

It is an arithmetic number, because the mean of its divisors is an integer number (27898122).

Almost surely, 2^219902442 is an apocalyptic number.

219902442 is an abundant number, since it is smaller than the sum of its proper divisors (226467510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

219902442 is a wasteful number, since it uses less digits than its factorization.

219902442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547093.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 219902442 is about 14829.1079300139. The cubic root of 219902442 is about 603.5918272771.

The spelling of 219902442 in words is "two hundred nineteen million, nine hundred two thousand, four hundred forty-two".