40148636 has 12 divisors (see below), whose sum is σ = 76647480. Its totient is φ = 18249360.

The previous prime is 40148623. The next prime is 40148651. The reversal of 40148636 is 63684104.

40148636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40148636² = 3223825945320992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 456191 + ... + 456278.

It is an arithmetic number, because the mean of its divisors is an integer number (6387290).

Almost surely, 2^40148636 is an apocalyptic number.

It is an amenable number.

40148636 is a deficient number, since it is larger than the sum of its proper divisors (36498844).

40148636 is a wasteful number, since it uses less digits than its factorization.

40148636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912484 (or 912482 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 40148636 is about 6336.2951320152. The cubic root of 40148636 is about 342.4182723639.

The spelling of 40148636 in words is "forty million, one hundred forty-eight thousand, six hundred thirty-six".