2148659730 has 128 divisors (see below), whose sum is σ = 6656002560. Its totient is φ = 483045120.

The previous prime is 2148659729. The next prime is 2148659743. The reversal of 2148659730 is 379568412.

2148659730 is a `hidden beast` number, since 21 + 4 + 8 + 6 + 597 + 30 = 666.

2148659730 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).

2148659730 is strictly pandigital in base 10.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105972 + ... + 124608.

It is an arithmetic number, because the mean of its divisors is an integer number (52000020).

It is a 1-persistent number, because it is pandigital, but 2⋅2148659730 = 4297319460 is not.

Almost surely, 2^2148659730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2148659730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3328001280).

2148659730 is an abundant number, since it is smaller than the sum of its proper divisors (4507342830).

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

2148659730 is a wasteful number, since it uses less digits than its factorization.

2148659730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18721 (or 18715 counting only the distinct ones).

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

The square root of 2148659730 is about 46353.6377213267. The cubic root of 2148659730 is about 1290.3946331837.

The spelling of 2148659730 in words is "two billion, one hundred forty-eight million, six hundred fifty-nine thousand, seven hundred thirty".