2154232830 has 32 divisors (see below), whose sum is σ = 5235609600. Its totient is φ = 567189792.

The previous prime is 2154232771. The next prime is 2154232841. The reversal of 2154232830 is 382324512.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452110 + ... + 456849.

It is an arithmetic number, because the mean of its divisors is an integer number (163612800).

Almost surely, 2^2154232830 is an apocalyptic number.

2154232830 is an abundant number, since it is smaller than the sum of its proper divisors (3081376770).

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

2154232830 is a wasteful number, since it uses less digits than its factorization.

2154232830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909048.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2154232830 is about 46413.7138139150. The cubic root of 2154232830 is about 1291.5093264517.

The spelling of 2154232830 in words is "two billion, one hundred fifty-four million, two hundred thirty-two thousand, eight hundred thirty".