2451312420 has 48 divisors (see below), whose sum is σ = 6931649088. Its totient is φ = 647209600.

The previous prime is 2451312373. The next prime is 2451312427. The reversal of 2451312420 is 242131542.

It is not an unprimeable number, because it can be changed into a prime (2451312427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196194 + ... + 208313.

It is an arithmetic number, because the mean of its divisors is an integer number (144409356).

Almost surely, 2^2451312420 is an apocalyptic number.

2451312420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2451312420 is an abundant number, since it is smaller than the sum of its proper divisors (4480336668).

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

2451312420 is a wasteful number, since it uses less digits than its factorization.

2451312420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404620 (or 404618 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2451312420 is about 49510.7303521166. The cubic root of 2451312420 is about 1348.3404243431.

Adding to 2451312420 its reverse (242131542), we get a palindrome (2693443962).

The spelling of 2451312420 in words is "two billion, four hundred fifty-one million, three hundred twelve thousand, four hundred twenty".