68490433 has 8 divisors (see below), whose sum is σ = 79112160. Its totient is φ = 58601280.

The previous prime is 68490419. The next prime is 68490437. The reversal of 68490433 is 33409486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68490433 - 2⁹ = 68489921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68490392 and 68490401.

It is not an unprimeable number, because it can be changed into a prime (68490437) 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, 182943 + ... + 183316.

It is an arithmetic number, because the mean of its divisors is an integer number (9889020).

Almost surely, 2^68490433 is an apocalyptic number.

It is an amenable number.

68490433 is a deficient number, since it is larger than the sum of its proper divisors (10621727).

68490433 is a wasteful number, since it uses less digits than its factorization.

68490433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366287.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 68490433 is about 8275.8946948351. The cubic root of 68490433 is about 409.1444244588.

The spelling of 68490433 in words is "sixty-eight million, four hundred ninety thousand, four hundred thirty-three".