649246275 has 36 divisors (see below), whose sum is σ = 1191251880. Its totient is φ = 337814400.

The previous prime is 649246267. The next prime is 649246291. The reversal of 649246275 is 572642946.

649246275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 649246275 - 2³ = 649246267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 649246275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25965 + ... + 44414.

It is an arithmetic number, because the mean of its divisors is an integer number (33090330).

Almost surely, 2^649246275 is an apocalyptic number.

649246275 is a deficient number, since it is larger than the sum of its proper divisors (542005605).

649246275 is a wasteful number, since it uses less digits than its factorization.

649246275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70436 (or 70428 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 649246275 is about 25480.3115169340. The cubic root of 649246275 is about 865.9041522141.

The spelling of 649246275 in words is "six hundred forty-nine million, two hundred forty-six thousand, two hundred seventy-five".