40001402042144 has 24 divisors (see below), whose sum is σ = 80881213253148. Its totient is φ = 19460141533440.

The previous prime is 40001402042143. The next prime is 40001402042177. The reversal of 40001402042144 is 44124020410004.

It can be written as a sum of positive squares in 2 ways, for example, as 27577327993744 + 12424074048400 = 5251412^2 + 3524780^2 .

It is a super-2 number, since 2×40001402042144² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40001402042143) 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, 16892482787 + ... + 16892485154.

Almost surely, 2^{40001402042144} is an apocalyptic number.

It is an amenable number.

40001402042144 is an abundant number, since it is smaller than the sum of its proper divisors (40879811211004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40001402042144 is a wasteful number, since it uses less digits than its factorization.

40001402042144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33784967988 (or 33784967980 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 40001402042144 its reverse (44124020410004), we get a palindrome (84125422452148).

The spelling of 40001402042144 in words is "forty trillion, one billion, four hundred two million, forty-two thousand, one hundred forty-four".