68208420 has 192 divisors, whose sum is σ = 237758976. Its totient is φ = 14254080.

The previous prime is 68208419. The next prime is 68208433. The reversal of 68208420 is 2480286.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 292624 + ... + 292856.

It is an arithmetic number, because the mean of its divisors is an integer number (1238328).

Almost surely, 2^68208420 is an apocalyptic number.

68208420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68208420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118879488).

68208420 is an abundant number, since it is smaller than the sum of its proper divisors (169550556).

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

68208420 is a wasteful number, since it uses less digits than its factorization.

68208420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 68208420 is about 8258.8389014437. The cubic root of 68208420 is about 408.5820939677.

The spelling of 68208420 in words is "sixty-eight million, two hundred eight thousand, four hundred twenty".