42773500 has 144 divisors (see below), whose sum is σ = 118512576. Its totient is φ = 13200000.

The previous prime is 42773477. The next prime is 42773501. The reversal of 42773500 is 537724.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42773501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 423450 + ... + 423550.

It is an arithmetic number, because the mean of its divisors is an integer number (823004).

Almost surely, 2^42773500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42773500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59256288).

42773500 is an abundant number, since it is smaller than the sum of its proper divisors (75739076).

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

42773500 is a wasteful number, since it uses less digits than its factorization.

42773500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 42773500 is about 6540.1452583257. The cubic root of 42773500 is about 349.7235912905.

It can be divided in two parts, 4277 and 3500, that added together give a palindrome (7777).

The spelling of 42773500 in words is "forty-two million, seven hundred seventy-three thousand, five hundred".