400413345 has 8 divisors (see below), whose sum is σ = 640661376. Its totient is φ = 213553776.

The previous prime is 400413341. The next prime is 400413361. The reversal of 400413345 is 543314004.

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

It is not a de Polignac number, because 400413345 - 2² = 400413341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400413341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13347097 + ... + 13347126.

It is an arithmetic number, because the mean of its divisors is an integer number (80082672).

Almost surely, 2^400413345 is an apocalyptic number.

It is an amenable number.

400413345 is a deficient number, since it is larger than the sum of its proper divisors (240248031).

400413345 is a wasteful number, since it uses less digits than its factorization.

400413345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26694231.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 400413345 is about 20010.3309567833. The cubic root of 400413345 is about 737.0600083571.

Adding to 400413345 its reverse (543314004), we get a palindrome (943727349).

The spelling of 400413345 in words is "four hundred million, four hundred thirteen thousand, three hundred forty-five".