40122420533 has 4 divisors (see below), whose sum is σ = 43208760588. Its totient is φ = 37036080480.

The previous prime is 40122420467. The next prime is 40122420557. The reversal of 40122420533 is 33502422104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8957108164 + 31165312369 = 94642^2 + 176537^2 .

It is a cyclic number.

It is not a de Polignac number, because 40122420533 - 2¹² = 40122416437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122420733) 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, 1543170008 + ... + 1543170033.

It is an arithmetic number, because the mean of its divisors is an integer number (10802190147).

Almost surely, 2^40122420533 is an apocalyptic number.

It is an amenable number.

40122420533 is a deficient number, since it is larger than the sum of its proper divisors (3086340055).

40122420533 is a wasteful number, since it uses less digits than its factorization.

40122420533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086340054.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 40122420533 its reverse (33502422104), we get a palindrome (73624842637).

The spelling of 40122420533 in words is "forty billion, one hundred twenty-two million, four hundred twenty thousand, five hundred thirty-three".