400140413 has 4 divisors (see below), whose sum is σ = 409446048. Its totient is φ = 390834780.

The previous prime is 400140409. The next prime is 400140439. The reversal of 400140413 is 314041004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400140413 - 2² = 400140409 is a prime.

It is a super-2 number, since 2×400140413² = 320224700231621138, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400140391 and 400140400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400140473) 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, 4652753 + ... + 4652838.

It is an arithmetic number, because the mean of its divisors is an integer number (102361512).

Almost surely, 2^400140413 is an apocalyptic number.

400140413 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

400140413 is a deficient number, since it is larger than the sum of its proper divisors (9305635).

400140413 is an equidigital number, since it uses as much as digits as its factorization.

400140413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9305634.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 400140413 is about 20003.5100169945. The cubic root of 400140413 is about 736.8925039612.

Adding to 400140413 its reverse (314041004), we get a palindrome (714181417).

The spelling of 400140413 in words is "four hundred million, one hundred forty thousand, four hundred thirteen".