68409954 has 16 divisors (see below), whose sum is σ = 152022240. Its totient is φ = 22803300.

The previous prime is 68409953. The next prime is 68409961. The reversal of 68409954 is 45990486.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68409953) 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, 633372 + ... + 633479.

It is an arithmetic number, because the mean of its divisors is an integer number (9501390).

Almost surely, 2^68409954 is an apocalyptic number.

68409954 is an abundant number, since it is smaller than the sum of its proper divisors (83612286).

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

68409954 is a wasteful number, since it uses less digits than its factorization.

68409954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266862 (or 1266856 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 68409954 is about 8271.0310119114. The cubic root of 68409954 is about 408.9841079583.

The spelling of 68409954 in words is "sixty-eight million, four hundred nine thousand, nine hundred fifty-four".