42566240 has 48 divisors (see below), whose sum is σ = 101098368. Its totient is φ = 16935936.

The previous prime is 42566231. The next prime is 42566257. The reversal of 42566240 is 4266524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35084 + ... + 36276.

It is an arithmetic number, because the mean of its divisors is an integer number (2106216).

Almost surely, 2^42566240 is an apocalyptic number.

42566240 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 42566240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50549184).

42566240 is an abundant number, since it is smaller than the sum of its proper divisors (58532128).

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

42566240 is a wasteful number, since it uses less digits than its factorization.

42566240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 42566240 is about 6524.2808032763. The cubic root of 42566240 is about 349.1578118433.

The spelling of 42566240 in words is "forty-two million, five hundred sixty-six thousand, two hundred forty".