2451321200 has 30 divisors (see below), whose sum is σ = 5889300144. Its totient is φ = 980528320.

The previous prime is 2451321133. The next prime is 2451321211. The reversal of 2451321200 is 21231542.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3063752 + ... + 3064551.

Almost surely, 2^2451321200 is an apocalyptic number.

2451321200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2451321200 is an abundant number, since it is smaller than the sum of its proper divisors (3437978944).

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

2451321200 is a wasteful number, since it uses less digits than its factorization.

2451321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6128321 (or 6128310 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2451321200 is about 49510.8190196850. The cubic root of 2451321200 is about 1348.3420341494.

Adding to 2451321200 its reverse (21231542), we get a palindrome (2472552742).

The spelling of 2451321200 in words is "two billion, four hundred fifty-one million, three hundred twenty-one thousand, two hundred".