649426124 has 12 divisors (see below), whose sum is σ = 1147530384. Its totient is φ = 321560304.

The previous prime is 649426123. The next prime is 649426133. The reversal of 649426124 is 421624946.

It is not an unprimeable number, because it can be changed into a prime (649426123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787727 + ... + 788550.

It is an arithmetic number, because the mean of its divisors is an integer number (95627532).

Almost surely, 2^649426124 is an apocalyptic number.

It is an amenable number.

649426124 is a deficient number, since it is larger than the sum of its proper divisors (498104260).

649426124 is a wasteful number, since it uses less digits than its factorization.

649426124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576384 (or 1576382 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 649426124 is about 25483.8404484097. The cubic root of 649426124 is about 865.9841001086.

The spelling of 649426124 in words is "six hundred forty-nine million, four hundred twenty-six thousand, one hundred twenty-four".