219407420 has 12 divisors (see below), whose sum is σ = 460755624. Its totient is φ = 87762960.

The previous prime is 219407401. The next prime is 219407449. The reversal of 219407420 is 24704912.

219407420 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5485166 + ... + 5485205.

It is an arithmetic number, because the mean of its divisors is an integer number (38396302).

Almost surely, 2^219407420 is an apocalyptic number.

219407420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219407420 is an abundant number, since it is smaller than the sum of its proper divisors (241348204).

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

219407420 is a wasteful number, since it uses less digits than its factorization.

219407420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10970380 (or 10970378 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 219407420 is about 14812.4076368428. The cubic root of 219407420 is about 603.1385721663.

The spelling of 219407420 in words is "two hundred nineteen million, four hundred seven thousand, four hundred twenty".