648913038 has 8 divisors (see below), whose sum is σ = 1297826088. Its totient is φ = 216304344.

The previous prime is 648912991. The next prime is 648913117. The reversal of 648913038 is 830319846.

It is a happy number.

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

648913038 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54076081 + ... + 54076092.

It is an arithmetic number, because the mean of its divisors is an integer number (162228261).

Almost surely, 2^648913038 is an apocalyptic number.

648913038 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

648913038 is a wasteful number, since it uses less digits than its factorization.

648913038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108152178.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 648913038 is about 25473.7715699894. The cubic root of 648913038 is about 865.7559800463.

The spelling of 648913038 in words is "six hundred forty-eight million, nine hundred thirteen thousand, thirty-eight".