40010646 has 32 divisors (see below), whose sum is σ = 88962048. Its totient is φ = 11913120.

The previous prime is 40010627. The next prime is 40010647. The reversal of 40010646 is 64601004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40010647) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5856 + ... + 10691.

It is an arithmetic number, because the mean of its divisors is an integer number (2780064).

Almost surely, 2^40010646 is an apocalyptic number.

40010646 is an abundant number, since it is smaller than the sum of its proper divisors (48951402).

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

40010646 is a wasteful number, since it uses less digits than its factorization.

40010646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16596.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40010646 is about 6325.3969045428. The cubic root of 40010646 is about 342.0255273172.

The spelling of 40010646 in words is "forty million, ten thousand, six hundred forty-six".