400143020015 has 8 divisors (see below), whose sum is σ = 488310126480. Its totient is φ = 314688747712.

The previous prime is 400143019999. The next prime is 400143020083. The reversal of 400143020015 is 510020341004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400143020015 - 2⁴ = 400143019999 is a prime.

It is a super-2 number, since 2×400143020015² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678208214 + ... + 678208803.

It is an arithmetic number, because the mean of its divisors is an integer number (61038765810).

Almost surely, 2^400143020015 is an apocalyptic number.

400143020015 is a deficient number, since it is larger than the sum of its proper divisors (88167106465).

400143020015 is a wasteful number, since it uses less digits than its factorization.

400143020015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356417081.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 400143020015 its reverse (510020341004), we get a palindrome (910163361019).

The spelling of 400143020015 in words is "four hundred billion, one hundred forty-three million, twenty thousand, fifteen".