68646424 has 32 divisors (see below), whose sum is σ = 160473600. Its totient is φ = 26745120.

The previous prime is 68646397. The next prime is 68646437. The reversal of 68646424 is 42464686.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55104 + ... + 56335.

It is an arithmetic number, because the mean of its divisors is an integer number (5014800).

Almost surely, 2^68646424 is an apocalyptic number.

It is an amenable number.

68646424 is an abundant number, since it is smaller than the sum of its proper divisors (91827176).

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

68646424 is a wasteful number, since it uses less digits than its factorization.

68646424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111463 (or 111459 counting only the distinct ones).

The product of its digits is 221184, while the sum is 40.

The square root of 68646424 is about 8285.3137538659. The cubic root of 68646424 is about 409.4548057920.

The spelling of 68646424 in words is "sixty-eight million, six hundred forty-six thousand, four hundred twenty-four".