2129356480 has 56 divisors (see below), whose sum is σ = 5146261488. Its totient is φ = 839021568.

The previous prime is 2129356469. The next prime is 2129356483. The reversal of 2129356480 is 846539212.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2129356483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28219 + ... + 71098.

Almost surely, 2^2129356480 is an apocalyptic number.

2129356480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2129356480 is an abundant number, since it is smaller than the sum of its proper divisors (3016905008).

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

2129356480 is an equidigital number, since it uses as much as digits as its factorization.

2129356480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99401 (or 99391 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 2129356480 is about 46144.9507530347. The cubic root of 2129356480 is about 1286.5187632198.

The spelling of 2129356480 in words is "two billion, one hundred twenty-nine million, three hundred fifty-six thousand, four hundred eighty".