40033430434421 has 8 divisors (see below), whose sum is σ = 42399584749080. Its totient is φ = 37668525746688.

The previous prime is 40033430434411. The next prime is 40033430434423. The reversal of 40033430434421 is 12443403433004.

It can be written as a sum of positive squares in 4 ways, for example, as 29384107745521 + 10649322688900 = 5420711^2 + 3263330^2 .

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 40033430434421 - 2⁴² = 35635383923317 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 (40033430434423) 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, 312340766 + ... + 312468911.

It is an arithmetic number, because the mean of its divisors is an integer number (5299948093635).

Almost surely, 2^{40033430434421} is an apocalyptic number.

It is an amenable number.

40033430434421 is a deficient number, since it is larger than the sum of its proper divisors (2366154314659).

40033430434421 is a wasteful number, since it uses less digits than its factorization.

40033430434421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624813463.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 40033430434421 its reverse (12443403433004), we get a palindrome (52476833867425).

The spelling of 40033430434421 in words is "forty trillion, thirty-three billion, four hundred thirty million, four hundred thirty-four thousand, four hundred twenty-one".