40406466 has 16 divisors (see below), whose sum is σ = 81396000. Its totient is φ = 13371648.

The previous prime is 40406459. The next prime is 40406489. The reversal of 40406466 is 66460404.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23391 + ... + 25058.

It is an arithmetic number, because the mean of its divisors is an integer number (5087250).

Almost surely, 2^40406466 is an apocalyptic number.

40406466 is an abundant number, since it is smaller than the sum of its proper divisors (40989534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40406466 is a wasteful number, since it uses less digits than its factorization.

40406466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48593.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 40406466 is about 6356.6080577616. The cubic root of 40406466 is about 343.1496993511.

The spelling of 40406466 in words is "forty million, four hundred six thousand, four hundred sixty-six".