649214506 has 16 divisors (see below), whose sum is σ = 1004905440. Its totient is φ = 314329680.

The previous prime is 649214483. The next prime is 649214507. The reversal of 649214506 is 605412946.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (649214507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5176 + ... + 36403.

It is an arithmetic number, because the mean of its divisors is an integer number (62806590).

Almost surely, 2^649214506 is an apocalyptic number.

649214506 is a deficient number, since it is larger than the sum of its proper divisors (355690934).

649214506 is a wasteful number, since it uses less digits than its factorization.

649214506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41829.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 649214506 is about 25479.6881064113. The cubic root of 649214506 is about 865.8900284736.

The spelling of 649214506 in words is "six hundred forty-nine million, two hundred fourteen thousand, five hundred six".