40638082 has 8 divisors (see below), whose sum is σ = 61128000. Its totient is φ = 20262084.

The previous prime is 40638071. The next prime is 40638089. The reversal of 40638082 is 28083604.

It is a happy number.

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 (40638089) 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, 27582 + ... + 29017.

It is an arithmetic number, because the mean of its divisors is an integer number (7641000).

Almost surely, 2^40638082 is an apocalyptic number.

40638082 is a deficient number, since it is larger than the sum of its proper divisors (20489918).

40638082 is a wasteful number, since it uses less digits than its factorization.

40638082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56960.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 40638082 is about 6374.8005458995. The cubic root of 40638082 is about 343.8041126052.

The spelling of 40638082 in words is "forty million, six hundred thirty-eight thousand, eighty-two".