251302041420 has 48 divisors (see below), whose sum is σ = 704080069728. Its totient is φ = 66972510720.

The previous prime is 251302041409. The next prime is 251302041443. The reversal of 251302041420 is 24140203152.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194649 + ... + 1389168.

It is an arithmetic number, because the mean of its divisors is an integer number (14668334786).

Almost surely, 2^251302041420 is an apocalyptic number.

251302041420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

251302041420 is an abundant number, since it is smaller than the sum of its proper divisors (452778028308).

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

251302041420 is a wasteful number, since it uses less digits than its factorization.

251302041420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585450 (or 2585448 counting only the distinct ones).

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

Adding to 251302041420 its reverse (24140203152), we get a palindrome (275442244572).

The spelling of 251302041420 in words is "two hundred fifty-one billion, three hundred two million, forty-one thousand, four hundred twenty".