68540582 has 8 divisors (see below), whose sum is σ = 112157352. Its totient is φ = 31154800.

The previous prime is 68540579. The next prime is 68540599. The reversal of 68540582 is 28504586.

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

It is a super-2 number, since 2×68540582² = 9395622761797448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557719 + ... + 1557762.

It is an arithmetic number, because the mean of its divisors is an integer number (14019669).

Almost surely, 2^68540582 is an apocalyptic number.

68540582 is a deficient number, since it is larger than the sum of its proper divisors (43616770).

68540582 is a wasteful number, since it uses less digits than its factorization.

68540582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115494.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 68540582 is about 8278.9239638977. The cubic root of 68540582 is about 409.2442592194.

The spelling of 68540582 in words is "sixty-eight million, five hundred forty thousand, five hundred eighty-two".