68801538 has 16 divisors (see below), whose sum is σ = 148188096. Its totient is φ = 21169680.

The previous prime is 68801531. The next prime is 68801569. The reversal of 68801538 is 83510886.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 68801496 and 68801505.

It is not an unprimeable number, because it can be changed into a prime (68801531) 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, 440958 + ... + 441113.

It is an arithmetic number, because the mean of its divisors is an integer number (9261756).

Almost surely, 2^68801538 is an apocalyptic number.

68801538 is an abundant number, since it is smaller than the sum of its proper divisors (79386558).

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

68801538 is a wasteful number, since it uses less digits than its factorization.

68801538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882089.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 68801538 is about 8294.6692519955. The cubic root of 68801538 is about 409.7629762276.

The spelling of 68801538 in words is "sixty-eight million, eight hundred one thousand, five hundred thirty-eight".