40399500143 has 4 divisors (see below), whose sum is σ = 40400277528. Its totient is φ = 40398722760.

The previous prime is 40399500133. The next prime is 40399500191. The reversal of 40399500143 is 34100599304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40399500143 - 2⁶ = 40399500079 is a prime.

It is a super-2 number, since 2×40399500143² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40399500097 and 40399500106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40399500133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304688 + ... + 416693.

It is an arithmetic number, because the mean of its divisors is an integer number (10100069382).

Almost surely, 2^40399500143 is an apocalyptic number.

40399500143 is a deficient number, since it is larger than the sum of its proper divisors (777385).

40399500143 is an equidigital number, since it uses as much as digits as its factorization.

40399500143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777384.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 40399500143 in words is "forty billion, three hundred ninety-nine million, five hundred thousand, one hundred forty-three".