40026646 has 8 divisors (see below), whose sum is σ = 65498184. Its totient is φ = 18193920.

The previous prime is 40026643. The next prime is 40026659. The reversal of 40026646 is 64662004.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40026643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909675 + ... + 909718.

It is an arithmetic number, because the mean of its divisors is an integer number (8187273).

Almost surely, 2^40026646 is an apocalyptic number.

40026646 is a deficient number, since it is larger than the sum of its proper divisors (25471538).

40026646 is a wasteful number, since it uses less digits than its factorization.

40026646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819406.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 40026646 is about 6326.6615208971. The cubic root of 40026646 is about 342.0711125109.

It can be divided in two parts, 4002 and 6646, that added together give a cube (10648 = 22³).

The spelling of 40026646 in words is "forty million, twenty-six thousand, six hundred forty-six".