2150533400 has 48 divisors (see below), whose sum is σ = 5027699040. Its totient is φ = 855446400.

The previous prime is 2150533391. The next prime is 2150533409. The reversal of 2150533400 is 43350512.

It is an interprime number because it is at equal distance from previous prime (2150533391) and next prime (2150533409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150533409) 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, 6497 + ... + 65903.

It is an arithmetic number, because the mean of its divisors is an integer number (104743730).

Almost surely, 2^2150533400 is an apocalyptic number.

2150533400 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 2150533400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2513849520).

2150533400 is an abundant number, since it is smaller than the sum of its proper divisors (2877165640).

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

2150533400 is a wasteful number, since it uses less digits than its factorization.

2150533400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59604 (or 59595 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2150533400 is about 46373.8439209001. The cubic root of 2150533400 is about 1290.7696066672.

Adding to 2150533400 its reverse (43350512), we get a palindrome (2193883912).

The spelling of 2150533400 in words is "two billion, one hundred fifty million, five hundred thirty-three thousand, four hundred".