400142343319 has 4 divisors (see below), whose sum is σ = 401428974960. Its totient is φ = 398855711680.

The previous prime is 400142343269. The next prime is 400142343361. The reversal of 400142343319 is 913343241004.

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 400142343319 - 2⁷ = 400142343191 is a prime.

It is a super-2 number, since 2×400142343319² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400142340319) 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, 643315354 + ... + 643315975.

It is an arithmetic number, because the mean of its divisors is an integer number (100357243740).

Almost surely, 2^400142343319 is an apocalyptic number.

400142343319 is a deficient number, since it is larger than the sum of its proper divisors (1286631641).

400142343319 is a wasteful number, since it uses less digits than its factorization.

400142343319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286631640.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 400142343319 in words is "four hundred billion, one hundred forty-two million, three hundred forty-three thousand, three hundred nineteen".