40000001042442 has 32 divisors (see below), whose sum is σ = 91976050317312. Its totient is φ = 11360137163184.

The previous prime is 40000001042437. The next prime is 40000001042467. The reversal of 40000001042442 is 24424010000004.

It is a super-2 number, since 2×40000001042442² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2851433038 + ... + 2851447065.

It is an arithmetic number, because the mean of its divisors is an integer number (2874251572416).

Almost surely, 2^{40000001042442} is an apocalyptic number.

40000001042442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40000001042442 is an abundant number, since it is smaller than the sum of its proper divisors (51976049274870).

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

40000001042442 is a wasteful number, since it uses less digits than its factorization.

40000001042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702880282.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 40000001042442 its reverse (24424010000004), we get a palindrome (64424011042446).

The spelling of 40000001042442 in words is "forty trillion, one million, forty-two thousand, four hundred forty-two".