40400034023201 has 4 divisors (see below), whose sum is σ = 41259609215232. Its totient is φ = 39540458831172.

The previous prime is 40400034023191. The next prime is 40400034023233. The reversal of 40400034023201 is 10232043000404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40400034023201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40400034020201) 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, 429787595945 + ... + 429787596038.

It is an arithmetic number, because the mean of its divisors is an integer number (10314902303808).

Almost surely, 2^{40400034023201} is an apocalyptic number.

It is an amenable number.

40400034023201 is a deficient number, since it is larger than the sum of its proper divisors (859575192031).

40400034023201 is an equidigital number, since it uses as much as digits as its factorization.

40400034023201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859575192030.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40400034023201 its reverse (10232043000404), we get a palindrome (50632077023605).

The spelling of 40400034023201 in words is "forty trillion, four hundred billion, thirty-four million, twenty-three thousand, two hundred one".