2002545400 has 24 divisors (see below), whose sum is σ = 4655918520. Its totient is φ = 801018080.

The previous prime is 2002545367. The next prime is 2002545401. The reversal of 2002545400 is 45452002.

It is a super-2 number, since 2×2002545400² = 8020376158122320000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002545401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5006164 + ... + 5006563.

It is an arithmetic number, because the mean of its divisors is an integer number (193996605).

Almost surely, 2^2002545400 is an apocalyptic number.

2002545400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002545400 is an abundant number, since it is smaller than the sum of its proper divisors (2653373120).

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

2002545400 is a wasteful number, since it uses less digits than its factorization.

2002545400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10012743 (or 10012734 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2002545400 is about 44749.8089381396. The cubic root of 2002545400 is about 1260.4553238089.

Adding to 2002545400 its reverse (45452002), we get a palindrome (2047997402).

The spelling of 2002545400 in words is "two billion, two million, five hundred forty-five thousand, four hundred".