Multipling 45678 by its sum of digits (30), we get a triangular number (1370340 = T1655).
It is a happy number.
45678 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
It is an alternating number because its digits alternate between even and odd.
It is a straight-line number, since its digits are in arithmetic progression.
It is a plaindrome in base 10.
It is a congruent number.
245678 is an apocalyptic number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
45678 is a wasteful number, since it uses less digits than its factorization.
45678 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 359.
The square root of 45678 is about 213.7241212404. The cubic root of 45678 is about 35.7466784206.
The spelling of 45678 in words is "forty-five thousand, six hundred seventy-eight".