649702422 has 12 divisors (see below), whose sum is σ = 1407688620. Its totient is φ = 216567468.

The previous prime is 649702387. The next prime is 649702423. The reversal of 649702422 is 224207946.

649702422 is a `hidden beast` number, since 649 + 7 + 0 + 2 + 4 + 2 + 2 = 666.

649702422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×649702422² = 844226474305332168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649702423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18047272 + ... + 18047307.

It is an arithmetic number, because the mean of its divisors is an integer number (117307385).

Almost surely, 2^649702422 is an apocalyptic number.

649702422 is an abundant number, since it is smaller than the sum of its proper divisors (757986198).

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

649702422 is a wasteful number, since it uses less digits than its factorization.

649702422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36094587 (or 36094584 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 649702422 is about 25489.2609151384. The cubic root of 649702422 is about 866.1068935215.

The spelling of 649702422 in words is "six hundred forty-nine million, seven hundred two thousand, four hundred twenty-two".