40646473 has 16 divisors (see below), whose sum is σ = 49870080. Its totient is φ = 32334336.

The previous prime is 40646471. The next prime is 40646479. The reversal of 40646473 is 37464604.

40646473 = T₁₉₅₇ + T₁₉₅₈ + ... + T₁₉₇₇.

40646473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40646473 - 2¹ = 40646471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40646471) 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 15 ways as a sum of consecutive naturals, for example, 6348 + ... + 11026.

It is an arithmetic number, because the mean of its divisors is an integer number (3116880).

Almost surely, 2^40646473 is an apocalyptic number.

It is an amenable number.

40646473 is a deficient number, since it is larger than the sum of its proper divisors (9223607).

40646473 is a wasteful number, since it uses less digits than its factorization.

40646473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776.

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 40646473 is about 6375.4586501678. The cubic root of 40646473 is about 343.8277740055.

The spelling of 40646473 in words is "forty million, six hundred forty-six thousand, four hundred seventy-three".