2054297440 has 144 divisors (see below), whose sum is σ = 5466657168. Its totient is φ = 725142528.

The previous prime is 2054297369. The next prime is 2054297449. The reversal of 2054297440 is 447924502.

It is a self number, because there is not a number n which added to its sum of digits gives 2054297440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054297449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1099387 + ... + 1101253.

It is an arithmetic number, because the mean of its divisors is an integer number (37962897).

Almost surely, 2^2054297440 is an apocalyptic number.

2054297440 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 2054297440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2733328584).

2054297440 is an abundant number, since it is smaller than the sum of its proper divisors (3412359728).

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

2054297440 is a wasteful number, since it uses less digits than its factorization.

2054297440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941 (or 1910 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 2054297440 is about 45324.3581311418. The cubic root of 2054297440 is about 1271.2211454980.

The spelling of 2054297440 in words is "two billion, fifty-four million, two hundred ninety-seven thousand, four hundred forty".