42426880 has 40 divisors (see below), whose sum is σ = 101731212. Its totient is φ = 16969728.

The previous prime is 42426877. The next prime is 42426887. The reversal of 42426880 is 8862424.

It can be written as a sum of positive squares in 2 ways, for example, as 42406144 + 20736 = 6512^2 + 144^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (42426887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5727 + ... + 10846.

Almost surely, 2^42426880 is an apocalyptic number.

42426880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42426880 is an abundant number, since it is smaller than the sum of its proper divisors (59304332).

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

42426880 is an equidigital number, since it uses as much as digits as its factorization.

42426880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16596 (or 16580 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 42426880 is about 6513.5919430066. The cubic root of 42426880 is about 348.7763528002.

The spelling of 42426880 in words is "forty-two million, four hundred twenty-six thousand, eight hundred eighty".