40646236 has 6 divisors (see below), whose sum is σ = 71130920. Its totient is φ = 20323116.

The previous prime is 40646173. The next prime is 40646237. The reversal of 40646236 is 63264604.

40646236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40646198 and 40646207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40646237) 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 as a sum of consecutive naturals, namely, 5080776 + ... + 5080783.

Almost surely, 2^40646236 is an apocalyptic number.

It is an amenable number.

40646236 is a deficient number, since it is larger than the sum of its proper divisors (30484684).

40646236 is a wasteful number, since it uses less digits than its factorization.

40646236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10161563 (or 10161561 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 40646236 is about 6375.4400632427. The cubic root of 40646236 is about 343.8271057446.

The spelling of 40646236 in words is "forty million, six hundred forty-six thousand, two hundred thirty-six".