40649594 has 8 divisors (see below), whose sum is σ = 61001748. Its totient is φ = 20315680.

The previous prime is 40649591. The next prime is 40649599. The reversal of 40649594 is 49594604.

40649594 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37884025 + 2765569 = 6155^2 + 1663^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40649591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5144 + ... + 10380.

Almost surely, 2^40649594 is an apocalyptic number.

40649594 is a deficient number, since it is larger than the sum of its proper divisors (20352154).

40649594 is a wasteful number, since it uses less digits than its factorization.

40649594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9120.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 40649594 is about 6375.7034121734. The cubic root of 40649594 is about 343.8365739410.

The spelling of 40649594 in words is "forty million, six hundred forty-nine thousand, five hundred ninety-four".