649612270 has 8 divisors (see below), whose sum is σ = 1169302104. Its totient is φ = 259844904.

The previous prime is 649612237. The next prime is 649612283. The reversal of 649612270 is 72216946.

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

It is a super-2 number, since 2×649612270² = 843992202669105800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32480604 + ... + 32480623.

It is an arithmetic number, because the mean of its divisors is an integer number (146162763).

Almost surely, 2^649612270 is an apocalyptic number.

649612270 is a deficient number, since it is larger than the sum of its proper divisors (519689834).

649612270 is a wasteful number, since it uses less digits than its factorization.

649612270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64961234.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 649612270 is about 25487.4924227551. The cubic root of 649612270 is about 866.0668316523.

The spelling of 649612270 in words is "six hundred forty-nine million, six hundred twelve thousand, two hundred seventy".