2161458300 has 36 divisors (see below), whose sum is σ = 6253820216. Its totient is φ = 576388800.

The previous prime is 2161458293. The next prime is 2161458301. The reversal of 2161458300 is 38541612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161458301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3602131 + ... + 3602730.

Almost surely, 2^2161458300 is an apocalyptic number.

2161458300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2161458300 is an abundant number, since it is smaller than the sum of its proper divisors (4092361916).

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

2161458300 is a wasteful number, since it uses less digits than its factorization.

2161458300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7204878 (or 7204871 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2161458300 is about 46491.4863173893. The cubic root of 2161458300 is about 1292.9516571044.

Adding to 2161458300 its reverse (38541612), we get a palindrome (2199999912).

The spelling of 2161458300 in words is "two billion, one hundred sixty-one million, four hundred fifty-eight thousand, three hundred".