68790450 has 48 divisors (see below), whose sum is σ = 179586720. Its totient is φ = 17377920.

The previous prime is 68790433. The next prime is 68790451. The reversal of 68790450 is 5409786.

It is a super-3 number, since 3×68790450³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 68790399 and 68790408.

It is not an unprimeable number, because it can be changed into a prime (68790451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9219 + ... + 14918.

It is an arithmetic number, because the mean of its divisors is an integer number (3741390).

Almost surely, 2^68790450 is an apocalyptic number.

68790450 is an abundant number, since it is smaller than the sum of its proper divisors (110796270).

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

68790450 is a wasteful number, since it uses less digits than its factorization.

68790450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24171 (or 24166 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 68790450 is about 8294.0008439836. Note that the first 3 decimals coincide. The cubic root of 68790450 is about 409.7409626888.

The spelling of 68790450 in words is "sixty-eight million, seven hundred ninety thousand, four hundred fifty".