68445741 has 32 divisors (see below), whose sum is σ = 112779520. Its totient is φ = 35956224.

The previous prime is 68445731. The next prime is 68445743. The reversal of 68445741 is 14754486.

It is not a de Polignac number, because 68445741 - 2⁹ = 68445229 is a prime.

It is a super-2 number, since 2×68445741² = 9369638922078162, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68445741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68445743) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 111351 + ... + 111963.

It is an arithmetic number, because the mean of its divisors is an integer number (3524360).

Almost surely, 2^68445741 is an apocalyptic number.

It is an amenable number.

68445741 is a deficient number, since it is larger than the sum of its proper divisors (44333779).

68445741 is a wasteful number, since it uses less digits than its factorization.

68445741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045.

The product of its digits is 107520, while the sum is 39.

The square root of 68445741 is about 8273.1941231909. The cubic root of 68445741 is about 409.0554122152.

The spelling of 68445741 in words is "sixty-eight million, four hundred forty-five thousand, seven hundred forty-one".