68252280 has 64 divisors (see below), whose sum is σ = 216807840. Its totient is φ = 17129472.

The previous prime is 68252269. The next prime is 68252291. The reversal of 68252280 is 8225286.

It is an interprime number because it is at equal distance from previous prime (68252269) and next prime (68252291).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 14689 + ... + 18768.

Almost surely, 2^68252280 is an apocalyptic number.

68252280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68252280 is an abundant number, since it is smaller than the sum of its proper divisors (148555560).

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

68252280 is a wasteful number, since it uses less digits than its factorization.

68252280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33488 (or 33484 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 68252280 is about 8261.4938116542. The cubic root of 68252280 is about 408.6696519304.

The spelling of 68252280 in words is "sixty-eight million, two hundred fifty-two thousand, two hundred eighty".