648018470 has 16 divisors (see below), whose sum is σ = 1272472848. Its totient is φ = 235643040.

The previous prime is 648018467. The next prime is 648018473. The reversal of 648018470 is 74810846.

It is an interprime number because it is at equal distance from previous prime (648018467) and next prime (648018473).

It is a super-2 number, since 2×648018470² = 839855874922281800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648018473) 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, 2945429 + ... + 2945648.

It is an arithmetic number, because the mean of its divisors is an integer number (79529553).

Almost surely, 2^648018470 is an apocalyptic number.

648018470 is a deficient number, since it is larger than the sum of its proper divisors (624454378).

648018470 is a wasteful number, since it uses less digits than its factorization.

648018470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5891095.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 648018470 is about 25456.2069051931. The cubic root of 648018470 is about 865.3579638192.

The spelling of 648018470 in words is "six hundred forty-eight million, eighteen thousand, four hundred seventy".