40416646 has 16 divisors (see below), whose sum is σ = 62331984. Its totient is φ = 19643904.

The previous prime is 40416619. The next prime is 40416671. The reversal of 40416646 is 64661404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19030 + ... + 21046.

It is an arithmetic number, because the mean of its divisors is an integer number (3895749).

Almost surely, 2^40416646 is an apocalyptic number.

40416646 is a deficient number, since it is larger than the sum of its proper divisors (21915338).

40416646 is a wasteful number, since it uses less digits than its factorization.

40416646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 40416646 is about 6357.4087488536. The cubic root of 40416646 is about 343.1785146288.

The spelling of 40416646 in words is "forty million, four hundred sixteen thousand, six hundred forty-six".