648740502 has 96 divisors (see below), whose sum is σ = 1554632352. Its totient is φ = 202051584.

The previous prime is 648740501. The next prime is 648740509. The reversal of 648740502 is 205047846.

648740502 is a `hidden beast` number, since 648 + 7 + 4 + 0 + 5 + 0 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648740501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1924878 + ... + 1925214.

It is an arithmetic number, because the mean of its divisors is an integer number (16194087).

Almost surely, 2^648740502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648740502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777316176).

648740502 is an abundant number, since it is smaller than the sum of its proper divisors (905891850).

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

648740502 is a wasteful number, since it uses less digits than its factorization.

648740502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 648740502 is about 25470.3848027469. The cubic root of 648740502 is about 865.6792428433.

The spelling of 648740502 in words is "six hundred forty-eight million, seven hundred forty thousand, five hundred two".