648340454 has 8 divisors (see below), whose sum is σ = 972737328. Its totient is φ = 324094680.

The previous prime is 648340453. The next prime is 648340463. The reversal of 648340454 is 454043846.

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

It is a super-2 number, since 2×648340454² = 840690688585852232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648340453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26357 + ... + 44624.

It is an arithmetic number, because the mean of its divisors is an integer number (121592166).

Almost surely, 2^648340454 is an apocalyptic number.

648340454 is a deficient number, since it is larger than the sum of its proper divisors (324396874).

648340454 is a wasteful number, since it uses less digits than its factorization.

648340454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75550.

The product of its (nonzero) digits is 184320, while the sum is 38.

The square root of 648340454 is about 25462.5303927163. The cubic root of 648340454 is about 865.5012649214.

The spelling of 648340454 in words is "six hundred forty-eight million, three hundred forty thousand, four hundred fifty-four".