648387342 has 40 divisors (see below), whose sum is σ = 1516044816. Its totient is φ = 206731008.

The previous prime is 648387329. The next prime is 648387343. The reversal of 648387342 is 243783846.

648387342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×648387342² = 840812290531649928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648387343) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 83283 + ... + 90734.

Almost surely, 2^648387342 is an apocalyptic number.

648387342 is an abundant number, since it is smaller than the sum of its proper divisors (867657474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648387342 is a wasteful number, since it uses less digits than its factorization.

648387342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174054 (or 174045 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 648387342 is about 25463.4511015298. The cubic root of 648387342 is about 865.5221287771.

The spelling of 648387342 in words is "six hundred forty-eight million, three hundred eighty-seven thousand, three hundred forty-two".