648453910 has 32 divisors (see below), whose sum is σ = 1258377120. Its totient is φ = 239167488.

The previous prime is 648453901. The next prime is 648453929. The reversal of 648453910 is 19354846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149046 + ... + 153334.

It is an arithmetic number, because the mean of its divisors is an integer number (39324285).

Almost surely, 2^648453910 is an apocalyptic number.

648453910 is a deficient number, since it is larger than the sum of its proper divisors (609923210).

648453910 is a wasteful number, since it uses less digits than its factorization.

648453910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5472.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 648453910 is about 25464.7581963780. The cubic root of 648453910 is about 865.5517479577.

The spelling of 648453910 in words is "six hundred forty-eight million, four hundred fifty-three thousand, nine hundred ten".