40938473 has 8 divisors (see below), whose sum is σ = 41625000. Its totient is φ = 40255488.

The previous prime is 40938463. The next prime is 40938481. The reversal of 40938473 is 37483904.

It can be written as a sum of positive squares in 4 ways, for example, as 7333264 + 33605209 = 2708^2 + 5797^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40938473 - 2⁶ = 40938409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40938463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32153 + ... + 33401.

It is an arithmetic number, because the mean of its divisors is an integer number (5203125).

Almost surely, 2^40938473 is an apocalyptic number.

It is an amenable number.

40938473 is a deficient number, since it is larger than the sum of its proper divisors (686527).

40938473 is a wasteful number, since it uses less digits than its factorization.

40938473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 40938473 is about 6398.3179820950. The cubic root of 40938473 is about 344.6491511305.

The spelling of 40938473 in words is "forty million, nine hundred thirty-eight thousand, four hundred seventy-three".