40410021 has 8 divisors (see below), whose sum is σ = 55738080. Its totient is φ = 26010992.

The previous prime is 40409983. The next prime is 40410023. The reversal of 40410021 is 12001404.

40410021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40410021 - 2¹⁰ = 40408997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40409979 and 40410006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40410023) 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 7 ways as a sum of consecutive naturals, for example, 232155 + ... + 232328.

It is an arithmetic number, because the mean of its divisors is an integer number (6967260).

Almost surely, 2^40410021 is an apocalyptic number.

It is an amenable number.

40410021 is a deficient number, since it is larger than the sum of its proper divisors (15328059).

40410021 is a wasteful number, since it uses less digits than its factorization.

40410021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464515.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 40410021 is about 6356.8876818770. The cubic root of 40410021 is about 343.1597626035.

Adding to 40410021 its reverse (12001404), we get a palindrome (52411425).

The spelling of 40410021 in words is "forty million, four hundred ten thousand, twenty-one".