2421531200 has 84 divisors (see below), whose sum is σ = 6500207472. Its totient is φ = 880550400.

The previous prime is 2421531199. The next prime is 2421531239. The reversal of 2421531200 is 21351242.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51194 + ... + 86393.

Almost surely, 2^2421531200 is an apocalyptic number.

2421531200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421531200 is an abundant number, since it is smaller than the sum of its proper divisors (4078676272).

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

2421531200 is a wasteful number, since it uses less digits than its factorization.

2421531200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137620 (or 137605 counting only the distinct ones).

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

The square root of 2421531200 is about 49209.0560771084. The cubic root of 2421531200 is about 1342.8577904241.

Adding to 2421531200 its reverse (21351242), we get a palindrome (2442882442).

The spelling of 2421531200 in words is "two billion, four hundred twenty-one million, five hundred thirty-one thousand, two hundred".