649031030 has 16 divisors (see below), whose sum is σ = 1169754480. Its totient is φ = 259279392.

The previous prime is 649031003. The next prime is 649031063. The reversal of 649031030 is 30130946.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33365 + ... + 49104.

It is an arithmetic number, because the mean of its divisors is an integer number (73109655).

Almost surely, 2^649031030 is an apocalyptic number.

649031030 is a deficient number, since it is larger than the sum of its proper divisors (520723450).

649031030 is a wasteful number, since it uses less digits than its factorization.

649031030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83263.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 649031030 is about 25476.0874154569. The cubic root of 649031030 is about 865.8084503994.

Adding to 649031030 its reverse (30130946), we get a palindrome (679161976).

The spelling of 649031030 in words is "six hundred forty-nine million, thirty-one thousand, thirty".