2158469730 has 96 divisors (see below), whose sum is σ = 6164346240. Its totient is φ = 521579520.

The previous prime is 2158469717. The next prime is 2158469737. The reversal of 2158469730 is 379648512.

2158469730 is a `hidden beast` number, since 2 + 1 + 584 + 69 + 7 + 3 + 0 = 666.

2158469730 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

2158469730 is strictly pandigital in base 10.

It is not an unprimeable number, because it can be changed into a prime (2158469737) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11890 + ... + 66770.

It is an arithmetic number, because the mean of its divisors is an integer number (64211940).

It is a 1-persistent number, because it is pandigital, but 2⋅2158469730 = 4316939460 is not.

Almost surely, 2^2158469730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2158469730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3082173120).

2158469730 is an abundant number, since it is smaller than the sum of its proper divisors (4005876510).

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

2158469730 is a wasteful number, since it uses less digits than its factorization.

2158469730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54936 (or 54933 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2158469730 is about 46459.3341536445. The cubic root of 2158469730 is about 1292.3554764595.

The spelling of 2158469730 in words is "two billion, one hundred fifty-eight million, four hundred sixty-nine thousand, seven hundred thirty".