40240842 has 16 divisors (see below), whose sum is σ = 81097632. Its totient is φ = 13310960.

The previous prime is 40240831. The next prime is 40240843. The reversal of 40240842 is 24804204.

It is not an unprimeable number, because it can be changed into a prime (40240843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24813 + ... + 26384.

It is an arithmetic number, because the mean of its divisors is an integer number (5068602).

Almost surely, 2^40240842 is an apocalyptic number.

40240842 is an abundant number, since it is smaller than the sum of its proper divisors (40856790).

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

40240842 is a wasteful number, since it uses less digits than its factorization.

40240842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51333.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 40240842 is about 6343.5669776554. The cubic root of 40240842 is about 342.6802063737.

The spelling of 40240842 in words is "forty million, two hundred forty thousand, eight hundred forty-two".