68942285 has 8 divisors (see below), whose sum is σ = 84966936. Its totient is φ = 53663040.

The previous prime is 68942243. The next prime is 68942353. The reversal of 68942285 is 58224986.

It can be written as a sum of positive squares in 4 ways, for example, as 12482089 + 56460196 = 3533^2 + 7514^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68942285 - 2¹⁰ = 68941261 is a prime.

It is a super-2 number, since 2×68942285² = 9506077322042450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186146 + ... + 186515.

It is an arithmetic number, because the mean of its divisors is an integer number (10620867).

Almost surely, 2^68942285 is an apocalyptic number.

It is an amenable number.

68942285 is a deficient number, since it is larger than the sum of its proper divisors (16024651).

68942285 is a wasteful number, since it uses less digits than its factorization.

68942285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372703.

The product of its digits is 276480, while the sum is 44.

The square root of 68942285 is about 8303.1491013952. The cubic root of 68942285 is about 410.0422026754.

The spelling of 68942285 in words is "sixty-eight million, nine hundred forty-two thousand, two hundred eighty-five".