40500041421 has 32 divisors (see below), whose sum is σ = 61988884480. Its totient is φ = 23040085824.

The previous prime is 40500041399. The next prime is 40500041429. The reversal of 40500041421 is 12414000504.

It is a happy number.

It is not a de Polignac number, because 40500041421 - 2¹⁴ = 40500025037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40500041429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8454495 + ... + 8459283.

It is an arithmetic number, because the mean of its divisors is an integer number (1937152640).

Almost surely, 2^40500041421 is an apocalyptic number.

It is an amenable number.

40500041421 is a deficient number, since it is larger than the sum of its proper divisors (21488843059).

40500041421 is a wasteful number, since it uses less digits than its factorization.

40500041421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 40500041421 its reverse (12414000504), we get a palindrome (52914041925).

The spelling of 40500041421 in words is "forty billion, five hundred million, forty-one thousand, four hundred twenty-one".