4020040100432 has 20 divisors (see below), whose sum is σ = 7865944803636. Its totient is φ = 1990118860800.

The previous prime is 4020040100431. The next prime is 4020040100467. The reversal of 4020040100432 is 2340010400204.

It can be written as a sum of positive squares in 2 ways, for example, as 2759306365456 + 1260733734976 = 1661116^2 + 1122824^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020040100431) 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, 1243822673 + ... + 1243825904.

Almost surely, 2^{4020040100432} is an apocalyptic number.

It is an amenable number.

4020040100432 is a deficient number, since it is larger than the sum of its proper divisors (3845904703204).

4020040100432 is a wasteful number, since it uses less digits than its factorization.

4020040100432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487648686 (or 2487648680 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 4020040100432 its reverse (2340010400204), we get a palindrome (6360050500636).

The spelling of 4020040100432 in words is "four trillion, twenty billion, forty million, one hundred thousand, four hundred thirty-two".