400440124101045 has 32 divisors (see below), whose sum is σ = 752023460867328. Its totient is φ = 178110819675648.

The previous prime is 400440124101041. The next prime is 400440124101067. The reversal of 400440124101045 is 540101421044004.

It is not a de Polignac number, because 400440124101045 - 2² = 400440124101041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400440124101041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51536691624 + ... + 51536699393.

It is an arithmetic number, because the mean of its divisors is an integer number (23500733152104).

Almost surely, 2^{400440124101045} is an apocalyptic number.

It is an amenable number.

400440124101045 is a deficient number, since it is larger than the sum of its proper divisors (351583336766283).

400440124101045 is a wasteful number, since it uses less digits than its factorization.

400440124101045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103073391069.

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 400440124101045 its reverse (540101421044004), we get a palindrome (940541545145049).

The spelling of 400440124101045 in words is "four hundred trillion, four hundred forty billion, one hundred twenty-four million, one hundred one thousand, forty-five".