68646460 has 24 divisors (see below), whose sum is σ = 144786096. Its totient is φ = 27338880.

The previous prime is 68646437. The next prime is 68646463. The reversal of 68646460 is 6464686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68646463) 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, 2706 + ... + 12025.

It is an arithmetic number, because the mean of its divisors is an integer number (6032754).

Almost surely, 2^68646460 is an apocalyptic number.

It is an amenable number.

68646460 is an abundant number, since it is smaller than the sum of its proper divisors (76139636).

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

68646460 is a wasteful number, since it uses less digits than its factorization.

68646460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14973 (or 14971 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 68646460 is about 8285.3159263845. The cubic root of 68646460 is about 409.4548773682.

The spelling of 68646460 in words is "sixty-eight million, six hundred forty-six thousand, four hundred sixty".