40308378 has 16 divisors (see below), whose sum is σ = 87945696. Its totient is φ = 12214640.

The previous prime is 40308349. The next prime is 40308379. The reversal of 40308378 is 87380304.

40308378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (40308379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305301 + ... + 305432.

It is an arithmetic number, because the mean of its divisors is an integer number (5496606).

Almost surely, 2^40308378 is an apocalyptic number.

40308378 is an abundant number, since it is smaller than the sum of its proper divisors (47637318).

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

40308378 is a wasteful number, since it uses less digits than its factorization.

40308378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610749.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 40308378 is about 6348.8879341189. The cubic root of 40308378 is about 342.8718053749.

The spelling of 40308378 in words is "forty million, three hundred eight thousand, three hundred seventy-eight".