1002545400 has 96 divisors (see below), whose sum is σ = 3123014400. Its totient is φ = 266044800.

The previous prime is 1002545353. The next prime is 1002545417. The reversal of 1002545400 is 45452001.

1002545400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1002545400² = 2010194558122320000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122641 + ... + 130559.

It is an arithmetic number, because the mean of its divisors is an integer number (32531400).

Almost surely, 2^1002545400 is an apocalyptic number.

1002545400 is a gapful number since it is divisible by the number (10) 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 1002545400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1561507200).

1002545400 is an abundant number, since it is smaller than the sum of its proper divisors (2120469000).

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

1002545400 is a wasteful number, since it uses less digits than its factorization.

1002545400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8149 (or 8140 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1002545400 is about 31662.9973312698. The cubic root of 1002545400 is about 1000.8477477873.

Adding to 1002545400 its reverse (45452001), we get a palindrome (1047997401).

The spelling of 1002545400 in words is "one billion, two million, five hundred forty-five thousand, four hundred".