2129631480 has 256 divisors, whose sum is σ = 7567862400. Its totient is φ = 530841600.

The previous prime is 2129631461. The next prime is 2129631503. The reversal of 2129631480 is 841369212.

2129631480 is a `hidden beast` number, since 2 + 12 + 9 + 631 + 4 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent 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, 3543180 + ... + 3543780.

Almost surely, 2^2129631480 is an apocalyptic number.

2129631480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2129631480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3783931200).

2129631480 is an abundant number, since it is smaller than the sum of its proper divisors (5438230920).

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

2129631480 is a wasteful number, since it uses less digits than its factorization.

2129631480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2129631480 is about 46147.9303977979. The cubic root of 2129631480 is about 1286.5741441818.

The spelling of 2129631480 in words is "two billion, one hundred twenty-nine million, six hundred thirty-one thousand, four hundred eighty".