40285646 has 4 divisors (see below), whose sum is σ = 60428472. Its totient is φ = 20142822.

The previous prime is 40285639. The next prime is 40285667. The reversal of 40285646 is 64658204.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10071410 + ... + 10071413.

It is an arithmetic number, because the mean of its divisors is an integer number (15107118).

Almost surely, 2^40285646 is an apocalyptic number.

40285646 is a deficient number, since it is larger than the sum of its proper divisors (20142826).

40285646 is a wasteful number, since it uses less digits than its factorization.

40285646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20142825.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 40285646 is about 6347.0974468650. The cubic root of 40285646 is about 342.8073388140.

The spelling of 40285646 in words is "forty million, two hundred eighty-five thousand, six hundred forty-six".