42235280 has 20 divisors (see below), whose sum is σ = 98197212. Its totient is φ = 16894080.

The previous prime is 42235279. The next prime is 42235283. The reversal of 42235280 is 8253224.

It can be written as a sum of positive squares in 2 ways, for example, as 29246464 + 12988816 = 5408^2 + 3604^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (42235283) 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, 263891 + ... + 264050.

Almost surely, 2^42235280 is an apocalyptic number.

42235280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42235280 is an abundant number, since it is smaller than the sum of its proper divisors (55961932).

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

42235280 is a wasteful number, since it uses less digits than its factorization.

42235280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527954 (or 527948 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 42235280 is about 6498.8675936658. The cubic root of 42235280 is about 348.2505352275.

The spelling of 42235280 in words is "forty-two million, two hundred thirty-five thousand, two hundred eighty".