649001366 has 8 divisors (see below), whose sum is σ = 1048386864. Its totient is φ = 299539080.

The previous prime is 649001363. The next prime is 649001429. The reversal of 649001366 is 663100946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649001363) 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, 12480770 + ... + 12480821.

It is an arithmetic number, because the mean of its divisors is an integer number (131048358).

Almost surely, 2^649001366 is an apocalyptic number.

649001366 is a deficient number, since it is larger than the sum of its proper divisors (399385498).

649001366 is a wasteful number, since it uses less digits than its factorization.

649001366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24961606.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 649001366 is about 25475.5052157950. The cubic root of 649001366 is about 865.7952595903.

It can be divided in two parts, 64900 and 1366, that added together give a palindrome (66266).

The spelling of 649001366 in words is "six hundred forty-nine million, one thousand, three hundred sixty-six".