2154240444 has 48 divisors (see below), whose sum is σ = 5521178880. Its totient is φ = 650707200.

The previous prime is 2154240427. The next prime is 2154240469. The reversal of 2154240444 is 4440424512.

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, 200157 + ... + 210644.

It is an arithmetic number, because the mean of its divisors is an integer number (115024560).

Almost surely, 2^2154240444 is an apocalyptic number.

It is an amenable number.

2154240444 is an abundant number, since it is smaller than the sum of its proper divisors (3366938436).

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

2154240444 is a wasteful number, since it uses less digits than its factorization.

2154240444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410850 (or 410848 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

The square root of 2154240444 is about 46413.7958370138. The cubic root of 2154240444 is about 1291.5108480360.

Adding to 2154240444 its reverse (4440424512), we get a palindrome (6594664956).

The spelling of 2154240444 in words is "two billion, one hundred fifty-four million, two hundred forty thousand, four hundred forty-four".