68262784 has 16 divisors (see below), whose sum is σ = 135992520. Its totient is φ = 34131328.

The previous prime is 68262767. The next prime is 68262829. The reversal of 68262784 is 48726286.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 68262784.

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, 266524 + ... + 266779.

Almost surely, 2^68262784 is an apocalyptic number.

68262784 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68262784 is a deficient number, since it is larger than the sum of its proper divisors (67729736).

68262784 is an equidigital number, since it uses as much as digits as its factorization.

68262784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533317 (or 533305 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 68262784 is about 8262.1295075785. The cubic root of 68262784 is about 408.6906155565.

The spelling of 68262784 in words is "sixty-eight million, two hundred sixty-two thousand, seven hundred eighty-four".