40010140423 has 16 divisors (see below), whose sum is σ = 43812451872. Its totient is φ = 36235584000.

The previous prime is 40010140399. The next prime is 40010140427. The reversal of 40010140423 is 32404101004.

It is a de Polignac number, because none of the positive numbers 2^k-40010140423 is a prime.

It is a super-2 number, since 2×40010140423² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40010140423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40010140427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3518515 + ... + 3529867.

It is an arithmetic number, because the mean of its divisors is an integer number (2738278242).

Almost surely, 2^40010140423 is an apocalyptic number.

40010140423 is a deficient number, since it is larger than the sum of its proper divisors (3802311449).

40010140423 is a wasteful number, since it uses less digits than its factorization.

40010140423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12546.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 40010140423 its reverse (32404101004), we get a palindrome (72414241427).

The spelling of 40010140423 in words is "forty billion, ten million, one hundred forty thousand, four hundred twenty-three".