40743401221 has 8 divisors (see below), whose sum is σ = 42536297664. Its totient is φ = 38952291840.

The previous prime is 40743401197. The next prime is 40743401233. The reversal of 40743401221 is 12210434704.

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 40743401221 - 2¹³ = 40743393029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40743401221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40743401921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400060 + ... + 491461.

It is an arithmetic number, because the mean of its divisors is an integer number (5317037208).

Almost surely, 2^40743401221 is an apocalyptic number.

It is an amenable number.

40743401221 is a deficient number, since it is larger than the sum of its proper divisors (1792896443).

40743401221 is a wasteful number, since it uses less digits than its factorization.

40743401221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893531.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 40743401221 its reverse (12210434704), we get a palindrome (52953835925).

The spelling of 40743401221 in words is "forty billion, seven hundred forty-three million, four hundred one thousand, two hundred twenty-one".