42355240 has 32 divisors (see below), whose sum is σ = 95546880. Its totient is φ = 16898112.

The previous prime is 42355219. The next prime is 42355241. The reversal of 42355240 is 4255324.

It is not an unprimeable number, because it can be changed into a prime (42355241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17377 + ... + 19663.

It is an arithmetic number, because the mean of its divisors is an integer number (2985840).

Almost surely, 2^42355240 is an apocalyptic number.

42355240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42355240 is an abundant number, since it is smaller than the sum of its proper divisors (53191640).

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

42355240 is a wasteful number, since it uses less digits than its factorization.

42355240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761 (or 2757 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 42355240 is about 6508.0903497109. The cubic root of 42355240 is about 348.5799331821.

The spelling of 42355240 in words is "forty-two million, three hundred fifty-five thousand, two hundred forty".