68278924 has 24 divisors (see below), whose sum is σ = 136747520. Its totient is φ = 29221776.

The previous prime is 68278897. The next prime is 68278933. The reversal of 68278924 is 42987286.

It is a super-2 number, since 2×68278924² = 9324022925195552, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27919 + ... + 30265.

Almost surely, 2^68278924 is an apocalyptic number.

It is an amenable number.

68278924 is an abundant number, since it is smaller than the sum of its proper divisors (68468596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68278924 is a wasteful number, since it uses less digits than its factorization.

68278924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397 (or 3395 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 68278924 is about 8263.1061956143. The cubic root of 68278924 is about 408.7228231829.

It can be divided in two parts, 6827 and 8924, that added together give a palindrome (15751).

The spelling of 68278924 in words is "sixty-eight million, two hundred seventy-eight thousand, nine hundred twenty-four".