68942574 has 24 divisors (see below), whose sum is σ = 154195392. Its totient is φ = 22239360.

The previous prime is 68942567. The next prime is 68942579. The reversal of 68942574 is 47524986.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68942579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61219 + ... + 62334.

It is an arithmetic number, because the mean of its divisors is an integer number (6424808).

Almost surely, 2^68942574 is an apocalyptic number.

68942574 is an abundant number, since it is smaller than the sum of its proper divisors (85252818).

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

68942574 is a wasteful number, since it uses less digits than its factorization.

68942574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123592 (or 123589 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 68942574 is about 8303.1665044126. The cubic root of 68942574 is about 410.0427756282.

The spelling of 68942574 in words is "sixty-eight million, nine hundred forty-two thousand, five hundred seventy-four".