2153442450 has 48 divisors (see below), whose sum is σ = 5349032640. Its totient is φ = 573337920.

The previous prime is 2153442437. The next prime is 2153442457. The reversal of 2153442450 is 542443512.

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

It is not an unprimeable number, because it can be changed into a prime (2153442457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85956 + ... + 108144.

It is an arithmetic number, because the mean of its divisors is an integer number (111438180).

Almost surely, 2^2153442450 is an apocalyptic number.

2153442450 is an abundant number, since it is smaller than the sum of its proper divisors (3195590190).

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

2153442450 is a wasteful number, since it uses less digits than its factorization.

2153442450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22851 (or 22846 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2153442450 is about 46405.1985234413. The cubic root of 2153442450 is about 1291.3513571439.

Adding to 2153442450 its reverse (542443512), we get a palindrome (2695885962).

The spelling of 2153442450 in words is "two billion, one hundred fifty-three million, four hundred forty-two thousand, four hundred fifty".