400325143 has 8 divisors (see below), whose sum is σ = 420739200. Its totient is φ = 380161848.

The previous prime is 400325137. The next prime is 400325147. The reversal of 400325143 is 341523004.

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

It is not a de Polignac number, because 400325143 - 2²⁵ = 366770711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400325147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59413 + ... + 65806.

It is an arithmetic number, because the mean of its divisors is an integer number (52592400).

Almost surely, 2^400325143 is an apocalyptic number.

400325143 is a deficient number, since it is larger than the sum of its proper divisors (20414057).

400325143 is a wasteful number, since it uses less digits than its factorization.

400325143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125381.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 400325143 is about 20008.1269238277. The cubic root of 400325143 is about 737.0058851686.

Adding to 400325143 its reverse (341523004), we get a palindrome (741848147).

The spelling of 400325143 in words is "four hundred million, three hundred twenty-five thousand, one hundred forty-three".