40272621 has 8 divisors (see below), whose sum is σ = 53734080. Its totient is φ = 26829792.

The previous prime is 40272611. The next prime is 40272623. The reversal of 40272621 is 12627204.

40272621 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 not a de Polignac number, because 40272621 - 2⁷ = 40272493 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40272591 and 40272600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40272623) 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, 1585 + ... + 9113.

It is an arithmetic number, because the mean of its divisors is an integer number (6716760).

Almost surely, 2^40272621 is an apocalyptic number.

It is an amenable number.

40272621 is a deficient number, since it is larger than the sum of its proper divisors (13461459).

40272621 is a wasteful number, since it uses less digits than its factorization.

40272621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9315.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 40272621 is about 6346.0713043583. The cubic root of 40272621 is about 342.7703897819.

Adding to 40272621 its reverse (12627204), we get a palindrome (52899825).

The spelling of 40272621 in words is "forty million, two hundred seventy-two thousand, six hundred twenty-one".