688240062 has 24 divisors (see below), whose sum is σ = 1512192240. Its totient is φ = 226181760.

The previous prime is 688240057. The next prime is 688240073. The reversal of 688240062 is 260042886.

It is a junction number, because it is equal to n+sod(n) for n = 688239999 and 688240026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 267987 + ... + 270542.

It is an arithmetic number, because the mean of its divisors is an integer number (63008010).

Almost surely, 2^688240062 is an apocalyptic number.

688240062 is an abundant number, since it is smaller than the sum of its proper divisors (823952178).

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

688240062 is a wasteful number, since it uses less digits than its factorization.

688240062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538608 (or 538605 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 688240062 is about 26234.3298370665. The cubic root of 688240062 is about 882.9036583448.

The spelling of 688240062 in words is "six hundred eighty-eight million, two hundred forty thousand, sixty-two".