40148678 has 8 divisors (see below), whose sum is σ = 61122072. Its totient is φ = 19774656.

The previous prime is 40148671. The next prime is 40148683. The reversal of 40148678 is 87684104.

40148678 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-2 number, since 2×40148678² = 3223832690295368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40148671) 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, 149675 + ... + 149942.

It is an arithmetic number, because the mean of its divisors is an integer number (7640259).

Almost surely, 2^40148678 is an apocalyptic number.

40148678 is a deficient number, since it is larger than the sum of its proper divisors (20973394).

40148678 is a wasteful number, since it uses less digits than its factorization.

40148678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299686.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 40148678 is about 6336.2984462539. The cubic root of 40148678 is about 342.4183917665.

The spelling of 40148678 in words is "forty million, one hundred forty-eight thousand, six hundred seventy-eight".