648492914 has 32 divisors (see below), whose sum is σ = 1086592320. Its totient is φ = 288465408.

The previous prime is 648492907. The next prime is 648492917. The reversal of 648492914 is 419294846.

It is a super-2 number, since 2×648492914² = 841086119016422792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (648492917) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 397769 + ... + 399395.

It is an arithmetic number, because the mean of its divisors is an integer number (33956010).

Almost surely, 2^648492914 is an apocalyptic number.

648492914 is a deficient number, since it is larger than the sum of its proper divisors (438099406).

648492914 is a wasteful number, since it uses less digits than its factorization.

648492914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282.

The product of its digits is 497664, while the sum is 47.

The square root of 648492914 is about 25465.5240275946. The cubic root of 648492914 is about 865.5691016987.

The spelling of 648492914 in words is "six hundred forty-eight million, four hundred ninety-two thousand, nine hundred fourteen".