7428023143 has 4 divisors (see below), whose sum is σ = 7430077008. Its totient is φ = 7425969280.

The previous prime is 7428023137. The next prime is 7428023159. The reversal of 7428023143 is 3413208247.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7428023143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7428023099 and 7428023108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7428023173) 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, 1021498 + ... + 1028743.

It is an arithmetic number, because the mean of its divisors is an integer number (1857519252).

Almost surely, 2^7428023143 is an apocalyptic number.

7428023143 is a deficient number, since it is larger than the sum of its proper divisors (2053865).

7428023143 is a wasteful number, since it uses less digits than its factorization.

7428023143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053864.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 7428023143 is about 86185.9799677419. The cubic root of 7428023143 is about 1951.1519070056.

The spelling of 7428023143 in words is "seven billion, four hundred twenty-eight million, twenty-three thousand, one hundred forty-three".