68265890 has 32 divisors (see below), whose sum is σ = 153201024. Its totient is φ = 21277440.

The previous prime is 68265871. The next prime is 68265907. The reversal of 68265890 is 9856286.

It is a happy number.

68265890 is nontrivially palindromic in base 15.

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 15 ways as a sum of consecutive naturals, for example, 43559 + ... + 45098.

It is an arithmetic number, because the mean of its divisors is an integer number (4787532).

Almost surely, 2^68265890 is an apocalyptic number.

68265890 is an abundant number, since it is smaller than the sum of its proper divisors (84935134).

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

68265890 is a wasteful number, since it uses less digits than its factorization.

68265890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88682.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 68265890 is about 8262.3174715088. The cubic root of 68265890 is about 408.6968140233.

The spelling of 68265890 in words is "sixty-eight million, two hundred sixty-five thousand, eight hundred ninety".