402424441251 has 48 divisors (see below), whose sum is σ = 659551104000. Its totient is φ = 217174269312.

The previous prime is 402424441241. The next prime is 402424441313. The reversal of 402424441251 is 152144424204.

It is not a de Polignac number, because 402424441251 - 2⁶ = 402424441187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402424441241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 486226 + ... + 1020423.

It is an arithmetic number, because the mean of its divisors is an integer number (13740648000).

Almost surely, 2^402424441251 is an apocalyptic number.

402424441251 is a deficient number, since it is larger than the sum of its proper divisors (257126662749).

402424441251 is a wasteful number, since it uses less digits than its factorization.

402424441251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506768 (or 1506761 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 33.

Adding to 402424441251 its reverse (152144424204), we get a palindrome (554568865455).

The spelling of 402424441251 in words is "four hundred two billion, four hundred twenty-four million, four hundred forty-one thousand, two hundred fifty-one".