40424142100 has 18 divisors (see below), whose sum is σ = 87720388574. Its totient is φ = 16169656800.

The previous prime is 40424142091. The next prime is 40424142107. The reversal of 40424142100 is 124142404.

It can be written as a sum of positive squares in 3 ways, for example, as 373726224 + 40050415876 = 19332^2 + 200126^2 .

It is a super-2 number, since 2×40424142100² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40424142107) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 202120611 + ... + 202120810.

Almost surely, 2^40424142100 is an apocalyptic number.

It is an amenable number.

40424142100 is an abundant number, since it is smaller than the sum of its proper divisors (47296246474).

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

40424142100 is a wasteful number, since it uses less digits than its factorization.

40424142100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404241435 (or 404241428 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 40424142100 its reverse (124142404), we get a palindrome (40548284504).

The spelling of 40424142100 in words is "forty billion, four hundred twenty-four million, one hundred forty-two thousand, one hundred".