2219421708 has 240 divisors, whose sum is σ = 6988929024. Its totient is φ = 600462720.

The previous prime is 2219421697. The next prime is 2219421709. The reversal of 2219421708 is 8071249122.

2219421708 is a `hidden beast` number, since 221 + 9 + 421 + 7 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2219421709) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8189613 + ... + 8189883.

Almost surely, 2^2219421708 is an apocalyptic number.

2219421708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2219421708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3494464512).

2219421708 is an abundant number, since it is smaller than the sum of its proper divisors (4769507316).

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

2219421708 is a wasteful number, since it uses less digits than its factorization.

2219421708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2219421708 is about 47110.7387757823. The cubic root of 2219421708 is about 1304.4074678241.

The spelling of 2219421708 in words is "two billion, two hundred nineteen million, four hundred twenty-one thousand, seven hundred eight".