648418045 has 8 divisors (see below), whose sum is σ = 848838240. Its totient is φ = 471576720.

The previous prime is 648418039. The next prime is 648418049. The reversal of 648418045 is 540814846.

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

It is not a de Polignac number, because 648418045 - 2⁹ = 648417533 is a prime.

It is a super-2 number, since 2×648418045² = 840891922163244050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 648417989 and 648418007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648418049) 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, 5894655 + ... + 5894764.

It is an arithmetic number, because the mean of its divisors is an integer number (106104780).

Almost surely, 2^648418045 is an apocalyptic number.

It is an amenable number.

648418045 is a deficient number, since it is larger than the sum of its proper divisors (200420195).

648418045 is a wasteful number, since it uses less digits than its factorization.

648418045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11789435.

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 648418045 is about 25464.0539781080. The cubic root of 648418045 is about 865.5357902131.

The spelling of 648418045 in words is "six hundred forty-eight million, four hundred eighteen thousand, forty-five".