40402143004 has 12 divisors (see below), whose sum is σ = 71137516744. Its totient is φ = 20077138224.

The previous prime is 40402142983. The next prime is 40402143017. The reversal of 40402143004 is 40034120404.

It is a super-2 number, since 2×40402143004² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 30982587 + ... + 30983890.

Almost surely, 2^40402143004 is an apocalyptic number.

It is an amenable number.

40402143004 is a deficient number, since it is larger than the sum of its proper divisors (30735373740).

40402143004 is a wasteful number, since it uses less digits than its factorization.

40402143004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61966644 (or 61966642 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 40402143004 its reverse (40034120404), we get a palindrome (80436263408).

The spelling of 40402143004 in words is "forty billion, four hundred two million, one hundred forty-three thousand, four".