40644622 has 8 divisors (see below), whose sum is σ = 61570872. Its totient is φ = 20121000.

The previous prime is 40644619. The next prime is 40644623. The reversal of 40644622 is 22644604.

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 (40644623) 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, 100404 + ... + 100807.

It is an arithmetic number, because the mean of its divisors is an integer number (7696359).

Almost surely, 2^40644622 is an apocalyptic number.

40644622 is a deficient number, since it is larger than the sum of its proper divisors (20926250).

40644622 is a wasteful number, since it uses less digits than its factorization.

40644622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201314.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 40644622 is about 6375.3134824885. The cubic root of 40644622 is about 343.8225547345.

The spelling of 40644622 in words is "forty million, six hundred forty-four thousand, six hundred twenty-two".