2150421500 has 48 divisors (see below), whose sum is σ = 4823495040. Its totient is φ = 836913600.

The previous prime is 2150421499. The next prime is 2150421521. The reversal of 2150421500 is 51240512.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39620 + ... + 76619.

It is an arithmetic number, because the mean of its divisors is an integer number (100489480).

Almost surely, 2^2150421500 is an apocalyptic number.

2150421500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2150421500 is an abundant number, since it is smaller than the sum of its proper divisors (2673073540).

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

2150421500 is a wasteful number, since it uses less digits than its factorization.

2150421500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116295 (or 116283 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2150421500 is about 46372.6374061256. The cubic root of 2150421500 is about 1290.7472184814.

The spelling of 2150421500 in words is "two billion, one hundred fifty million, four hundred twenty-one thousand, five hundred".