40308842 has 16 divisors (see below), whose sum is σ = 72738240. Its totient is φ = 16365888.

The previous prime is 40308839. The next prime is 40308847. The reversal of 40308842 is 24880304.

It is not an unprimeable number, because it can be changed into a prime (40308847) 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, 75503 + ... + 76034.

It is an arithmetic number, because the mean of its divisors is an integer number (4546140).

Almost surely, 2^40308842 is an apocalyptic number.

40308842 is a deficient number, since it is larger than the sum of its proper divisors (32429398).

40308842 is a wasteful number, since it uses less digits than its factorization.

40308842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151565.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 40308842 is about 6348.9244758463. The cubic root of 40308842 is about 342.8731209981.

The spelling of 40308842 in words is "forty million, three hundred eight thousand, eight hundred forty-two".