2154980430 has 128 divisors (see below), whose sum is σ = 5986051200. Its totient is φ = 550996992.

The previous prime is 2154980417. The next prime is 2154980431. The reversal of 2154980430 is 340894512.

2154980430 is a `hidden beast` number, since 2 + 1 + 549 + 80 + 4 + 30 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154980431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1228434 + ... + 1230186.

It is an arithmetic number, because the mean of its divisors is an integer number (46766025).

Almost surely, 2^2154980430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2154980430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2993025600).

2154980430 is an abundant number, since it is smaller than the sum of its proper divisors (3831070770).

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

2154980430 is a wasteful number, since it uses less digits than its factorization.

2154980430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955 (or 1949 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2154980430 is about 46421.7667694800. The cubic root of 2154980430 is about 1291.6587099799.

The spelling of 2154980430 in words is "two billion, one hundred fifty-four million, nine hundred eighty thousand, four hundred thirty".