68421774 has 48 divisors (see below), whose sum is σ = 149230080. Its totient is φ = 20889360.

The previous prime is 68421761. The next prime is 68421811. The reversal of 68421774 is 47712486.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66637 + ... + 67655.

It is an arithmetic number, because the mean of its divisors is an integer number (3108960).

Almost surely, 2^68421774 is an apocalyptic number.

68421774 is an abundant number, since it is smaller than the sum of its proper divisors (80808306).

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

68421774 is a wasteful number, since it uses less digits than its factorization.

68421774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093 (or 1074 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 68421774 is about 8271.7455231650. The cubic root of 68421774 is about 409.0076616152.

The spelling of 68421774 in words is "sixty-eight million, four hundred twenty-one thousand, seven hundred seventy-four".