68150020 has 12 divisors (see below), whose sum is σ = 143115084. Its totient is φ = 27260000.

The previous prime is 68150003. The next prime is 68150039. The reversal of 68150020 is 2005186.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39162564 + 28987456 = 6258^2 + 5384^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68149973 and 68150000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703731 + ... + 1703770.

It is an arithmetic number, because the mean of its divisors is an integer number (11926257).

Almost surely, 2^68150020 is an apocalyptic number.

It is an amenable number.

68150020 is an abundant number, since it is smaller than the sum of its proper divisors (74965064).

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

68150020 is a wasteful number, since it uses less digits than its factorization.

68150020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407510 (or 3407508 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 68150020 is about 8255.3025383689. The cubic root of 68150020 is about 408.4654514402.

The spelling of 68150020 in words is "sixty-eight million, one hundred fifty thousand, twenty".