40245878 has 8 divisors (see below), whose sum is σ = 60411960. Its totient is φ = 20108560.

The previous prime is 40245871. The next prime is 40245901. The reversal of 40245878 is 87854204.

40245878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×40245878⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40245871) 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 3 ways as a sum of consecutive naturals, for example, 3263 + ... + 9546.

It is an arithmetic number, because the mean of its divisors is an integer number (7551495).

Almost surely, 2^40245878 is an apocalyptic number.

40245878 is a deficient number, since it is larger than the sum of its proper divisors (20166082).

40245878 is a wasteful number, since it uses less digits than its factorization.

40245878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14382.

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 40245878 is about 6343.9639027977. The cubic root of 40245878 is about 342.6945008520.

The spelling of 40245878 in words is "forty million, two hundred forty-five thousand, eight hundred seventy-eight".