2002540254 has 64 divisors (see below), whose sum is σ = 4717923840. Its totient is φ = 558645120.

The previous prime is 2002540247. The next prime is 2002540259. The reversal of 2002540254 is 4520452002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002540259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337687 + ... + 343565.

It is an arithmetic number, because the mean of its divisors is an integer number (73717560).

Almost surely, 2^2002540254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2002540254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2358961920).

2002540254 is an abundant number, since it is smaller than the sum of its proper divisors (2715383586).

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

2002540254 is a wasteful number, since it uses less digits than its factorization.

2002540254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 2002540254 is about 44749.7514406505. The cubic root of 2002540254 is about 1260.4542441315.

Adding to 2002540254 its reverse (4520452002), we get a palindrome (6522992256).

The spelling of 2002540254 in words is "two billion, two million, five hundred forty thousand, two hundred fifty-four".