42903280 has 80 divisors (see below), whose sum is σ = 118992384. Its totient is φ = 14065920.

The previous prime is 42903269. The next prime is 42903283. The reversal of 42903280 is 8230924.

42903280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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 (42903283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11215 + ... + 14545.

Almost surely, 2^42903280 is an apocalyptic number.

42903280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42903280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59496192).

42903280 is an abundant number, since it is smaller than the sum of its proper divisors (76089104).

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

42903280 is a wasteful number, since it uses less digits than its factorization.

42903280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374 (or 3368 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 42903280 is about 6550.0595417141. The cubic root of 42903280 is about 350.0769354681.

Subtracting from 42903280 its product of nonzero digits (3456), we obtain a palindrome (42899824).

The spelling of 42903280 in words is "forty-two million, nine hundred three thousand, two hundred eighty".