68969280 has 56 divisors (see below), whose sum is σ = 218980512. Its totient is φ = 18391552.

The previous prime is 68969267. The next prime is 68969281. The reversal of 68969280 is 8296986.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68969281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34962 + ... + 36881.

Almost surely, 2^68969280 is an apocalyptic number.

68969280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68969280 is an abundant number, since it is smaller than the sum of its proper divisors (150011232).

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

68969280 is a wasteful number, since it uses less digits than its factorization.

68969280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71863 (or 71853 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 68969280 is about 8304.7745303530. The cubic root of 68969280 is about 410.0957143185.

The spelling of 68969280 in words is "sixty-eight million, nine hundred sixty-nine thousand, two hundred eighty".