40125143420 has 24 divisors (see below), whose sum is σ = 84280803264. Its totient is φ = 16046628416.

The previous prime is 40125143413. The next prime is 40125143437. The reversal of 40125143420 is 2434152104.

It is a super-2 number, since 2×40125143420² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40125143420.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 117284 + ... + 306603.

It is an arithmetic number, because the mean of its divisors is an integer number (3511700136).

Almost surely, 2^40125143420 is an apocalyptic number.

It is an amenable number.

40125143420 is an abundant number, since it is smaller than the sum of its proper divisors (44155659844).

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

40125143420 is a wasteful number, since it uses less digits than its factorization.

40125143420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428629 (or 428627 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 40125143420 its reverse (2434152104), we get a palindrome (42559295524).

The spelling of 40125143420 in words is "forty billion, one hundred twenty-five million, one hundred forty-three thousand, four hundred twenty".