651226422 has 32 divisors (see below), whose sum is σ = 1623838464. Its totient is φ = 169149600.

The previous prime is 651226369. The next prime is 651226441. The reversal of 651226422 is 224622156.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 651226422.

It is a congruent number.

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, 704329 + ... + 705252.

It is an arithmetic number, because the mean of its divisors is an integer number (50744952).

Almost surely, 2^651226422 is an apocalyptic number.

651226422 is an abundant number, since it is smaller than the sum of its proper divisors (972612042).

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

651226422 is a wasteful number, since it uses less digits than its factorization.

651226422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409604.

The product of its digits is 11520, while the sum is 30.

The square root of 651226422 is about 25519.1383475226. The cubic root of 651226422 is about 866.7835705879.

Adding to 651226422 its reverse (224622156), we get a palindrome (875848578).

The spelling of 651226422 in words is "six hundred fifty-one million, two hundred twenty-six thousand, four hundred twenty-two".