40122645 has 8 divisors (see below), whose sum is σ = 64196256. Its totient is φ = 21398736.

The previous prime is 40122611. The next prime is 40122647. The reversal of 40122645 is 54622104.

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

It is not a de Polignac number, because 40122645 - 2⁸ = 40122389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1337407 + ... + 1337436.

It is an arithmetic number, because the mean of its divisors is an integer number (8024532).

Almost surely, 2^40122645 is an apocalyptic number.

It is an amenable number.

40122645 is a deficient number, since it is larger than the sum of its proper divisors (24073611).

40122645 is a wasteful number, since it uses less digits than its factorization.

40122645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674851.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 40122645 is about 6334.2438380599. The cubic root of 40122645 is about 342.3443660383.

Adding to 40122645 its reverse (54622104), we get a palindrome (94744749).

The spelling of 40122645 in words is "forty million, one hundred twenty-two thousand, six hundred forty-five".