2054621040 has 80 divisors (see below), whose sum is σ = 6407589888. Its totient is φ = 544607488.

The previous prime is 2054620979. The next prime is 2054621053. The reversal of 2054621040 is 401264502.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2054621040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14449 + ... + 65711.

Almost surely, 2^2054621040 is an apocalyptic number.

2054621040 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 2054621040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3203794944).

2054621040 is an abundant number, since it is smaller than the sum of its proper divisors (4352968848).

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

2054621040 is a wasteful number, since it uses less digits than its factorization.

2054621040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51446 (or 51440 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2054621040 is about 45327.9278149796. The cubic root of 2054621040 is about 1271.2878910361.

Adding to 2054621040 its reverse (401264502), we get a palindrome (2455885542).

The spelling of 2054621040 in words is "two billion, fifty-four million, six hundred twenty-one thousand, forty".