68385454 has 4 divisors (see below), whose sum is σ = 102578184. Its totient is φ = 34192726.

The previous prime is 68385439. The next prime is 68385469. The reversal of 68385454 is 45458386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45458386 = 2 ⋅22729193.

It is an interprime number because it is at equal distance from previous prime (68385439) and next prime (68385469).

It is a super-2 number, since 2×68385454² = 9353140637572232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68385454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17096362 + ... + 17096365.

It is an arithmetic number, because the mean of its divisors is an integer number (25644546).

Almost surely, 2^68385454 is an apocalyptic number.

68385454 is a deficient number, since it is larger than the sum of its proper divisors (34192730).

68385454 is a wasteful number, since it uses less digits than its factorization.

68385454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34192729.

The product of its digits is 460800, while the sum is 43.

The square root of 68385454 is about 8269.5498063679. The cubic root of 68385454 is about 408.9352782852.

The spelling of 68385454 in words is "sixty-eight million, three hundred eighty-five thousand, four hundred fifty-four".