2219492730 has 384 divisors, whose sum is σ = 7108915968. Its totient is φ = 438939648.

The previous prime is 2219492711. The next prime is 2219492827. The reversal of 2219492730 is 372949122.

It is a super-2 number, since 2×2219492730² = 9852295957045705800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 30403974 + ... + 30404046.

It is an arithmetic number, because the mean of its divisors is an integer number (18512802).

Almost surely, 2^2219492730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2219492730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3554457984).

2219492730 is an abundant number, since it is smaller than the sum of its proper divisors (4889423238).

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

2219492730 is a wasteful number, since it uses less digits than its factorization.

2219492730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 2219492730 is about 47111.4925469359. The cubic root of 2219492730 is about 1304.4213814544.

It can be divided in two parts, 2219492 and 730, that added together give a palindrome (2220222).

The spelling of 2219492730 in words is "two billion, two hundred nineteen million, four hundred ninety-two thousand, seven hundred thirty".