68190052 has 24 divisors (see below), whose sum is σ = 139708800. Its totient is φ = 28511040.

The previous prime is 68190047. The next prime is 68190053. The reversal of 68190052 is 25009186.

It is a junction number, because it is equal to n+sod(n) for n = 68189996 and 68190023.

It is not an unprimeable number, because it can be changed into a prime (68190053) 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, 28552 + ... + 30847.

It is an arithmetic number, because the mean of its divisors is an integer number (5821200).

Almost surely, 2^68190052 is an apocalyptic number.

It is an amenable number.

68190052 is an abundant number, since it is smaller than the sum of its proper divisors (71518748).

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

68190052 is a wasteful number, since it uses less digits than its factorization.

68190052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59451 (or 59449 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 68190052 is about 8257.7268058468. The cubic root of 68190052 is about 408.5454146756.

The spelling of 68190052 in words is "sixty-eight million, one hundred ninety thousand, fifty-two".