67449954 has 64 divisors (see below), whose sum is σ = 159989760. Its totient is φ = 18688320.

The previous prime is 67449953. The next prime is 67449959. The reversal of 67449954 is 45994476.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (67449953) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108657 + ... + 109275.

It is an arithmetic number, because the mean of its divisors is an integer number (2499840).

Almost surely, 2^67449954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67449954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79994880).

67449954 is an abundant number, since it is smaller than the sum of its proper divisors (92539806).

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

67449954 is a wasteful number, since it uses less digits than its factorization.

67449954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775.

The product of its digits is 1088640, while the sum is 48.

The square root of 67449954 is about 8212.7920952621. The cubic root of 67449954 is about 407.0619911330.

The spelling of 67449954 in words is "sixty-seven million, four hundred forty-nine thousand, nine hundred fifty-four".