651457442 has 24 divisors (see below), whose sum is σ = 1042129920. Its totient is φ = 305363520.

The previous prime is 651457381. The next prime is 651457501. The reversal of 651457442 is 244754156.

It is a happy number.

651457442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 651457396 and 651457405.

It is a congruent number.

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, 154559 + ... + 158717.

It is an arithmetic number, because the mean of its divisors is an integer number (43422080).

Almost surely, 2^651457442 is an apocalyptic number.

651457442 is a deficient number, since it is larger than the sum of its proper divisors (390672478).

651457442 is a wasteful number, since it uses less digits than its factorization.

651457442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466 (or 4449 counting only the distinct ones).

The product of its digits is 134400, while the sum is 38.

The square root of 651457442 is about 25523.6643529098. The cubic root of 651457442 is about 866.8860544858.

The spelling of 651457442 in words is "six hundred fifty-one million, four hundred fifty-seven thousand, four hundred forty-two".