68620286 has 48 divisors (see below), whose sum is σ = 127429200. Its totient is φ = 27554688.

The previous prime is 68620283. The next prime is 68620297. The reversal of 68620286 is 68202686.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68620283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254960 + ... + 255228.

It is an arithmetic number, because the mean of its divisors is an integer number (2654775).

Almost surely, 2^68620286 is an apocalyptic number.

68620286 is a deficient number, since it is larger than the sum of its proper divisors (58808914).

68620286 is a wasteful number, since it uses less digits than its factorization.

68620286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 68620286 is about 8283.7362343329. The cubic root of 68620286 is about 409.4028308177.

The spelling of 68620286 in words is "sixty-eight million, six hundred twenty thousand, two hundred eighty-six".