42375440 has 20 divisors (see below), whose sum is σ = 98523084. Its totient is φ = 16950144.

The previous prime is 42375439. The next prime is 42375449. The reversal of 42375440 is 4457324.

It can be written as a sum of positive squares in 2 ways, for example, as 8456464 + 33918976 = 2908^2 + 5824^2 .

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 (42375449) 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, 264767 + ... + 264926.

Almost surely, 2^42375440 is an apocalyptic number.

42375440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42375440 is an abundant number, since it is smaller than the sum of its proper divisors (56147644).

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

42375440 is a wasteful number, since it uses less digits than its factorization.

42375440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529706 (or 529700 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 42375440 is about 6509.6420792544. The cubic root of 42375440 is about 348.6353391214.

The spelling of 42375440 in words is "forty-two million, three hundred seventy-five thousand, four hundred forty".