1040204401542 has 64 divisors (see below), whose sum is σ = 2368163589120. Its totient is φ = 338246625600.

The previous prime is 1040204401531. The next prime is 1040204401547. The reversal of 1040204401542 is 2451044020401.

1040204401542 is a `hidden beast` number, since 1 + 0 + 4 + 0 + 204 + 401 + 54 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040204401547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46445167 + ... + 46467557.

It is an arithmetic number, because the mean of its divisors is an integer number (37002556080).

Almost surely, 2^{1040204401542} is an apocalyptic number.

1040204401542 is an abundant number, since it is smaller than the sum of its proper divisors (1327959187578).

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

1040204401542 is a wasteful number, since it uses less digits than its factorization.

1040204401542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43426 (or 43420 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 1040204401542 its reverse (2451044020401), we get a palindrome (3491248421943).

The spelling of 1040204401542 in words is "one trillion, forty billion, two hundred four million, four hundred one thousand, five hundred forty-two".