42266320 has 20 divisors (see below), whose sum is σ = 98269380. Its totient is φ = 16906496.

The previous prime is 42266309. The next prime is 42266353. The reversal of 42266320 is 2366224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31270464 + 10995856 = 5592^2 + 3316^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264085 + ... + 264244.

It is an arithmetic number, because the mean of its divisors is an integer number (4913469).

Almost surely, 2^42266320 is an apocalyptic number.

42266320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42266320 is an abundant number, since it is smaller than the sum of its proper divisors (56003060).

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

42266320 is a wasteful number, since it uses less digits than its factorization.

42266320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528342 (or 528336 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 42266320 is about 6501.2552634088. The cubic root of 42266320 is about 348.3358276621.

The spelling of 42266320 in words is "forty-two million, two hundred sixty-six thousand, three hundred twenty".