68455900 has 18 divisors (see below), whose sum is σ = 148549520. Its totient is φ = 27382320.

The previous prime is 68455897. The next prime is 68455909. The reversal of 68455900 is 955486.

It is a self number, because there is not a number n which added to its sum of digits gives 68455900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68455909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 342180 + ... + 342379.

Almost surely, 2^68455900 is an apocalyptic number.

It is an amenable number.

68455900 is an abundant number, since it is smaller than the sum of its proper divisors (80093620).

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

68455900 is a wasteful number, since it uses less digits than its factorization.

68455900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684573 (or 684566 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 68455900 is about 8273.8080712572. The cubic root of 68455900 is about 409.0756491128.

The spelling of 68455900 in words is "sixty-eight million, four hundred fifty-five thousand, nine hundred".