646453422 has 24 divisors (see below), whose sum is σ = 1401120864. Its totient is φ = 215411904.

The previous prime is 646453411. The next prime is 646453439. The reversal of 646453422 is 224354646.

646453422 is a `hidden beast` number, since 6 + 4 + 645 + 3 + 4 + 2 + 2 = 666.

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, 90763 + ... + 97625.

It is an arithmetic number, because the mean of its divisors is an integer number (58380036).

Almost surely, 2^646453422 is an apocalyptic number.

646453422 is an abundant number, since it is smaller than the sum of its proper divisors (754667442).

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

646453422 is a wasteful number, since it uses less digits than its factorization.

646453422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12104 (or 12101 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 646453422 is about 25425.4483146315. The cubic root of 646453422 is about 864.6607519496.

The spelling of 646453422 in words is "six hundred forty-six million, four hundred fifty-three thousand, four hundred twenty-two".