400630013 has 8 divisors (see below), whose sum is σ = 459177600. Its totient is φ = 342411120.

The previous prime is 400629967. The next prime is 400630033. The reversal of 400630013 is 310036004.

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 400630013 - 2¹² = 400625917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400629973 and 400630000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400630033) 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, 79553 + ... + 84438.

It is an arithmetic number, because the mean of its divisors is an integer number (57397200).

Almost surely, 2^400630013 is an apocalyptic number.

It is an amenable number.

400630013 is a deficient number, since it is larger than the sum of its proper divisors (58547587).

400630013 is a wasteful number, since it uses less digits than its factorization.

400630013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164347.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 400630013 is about 20015.7441280608. The cubic root of 400630013 is about 737.1929281044.

Adding to 400630013 its reverse (310036004), we get a palindrome (710666017).

The spelling of 400630013 in words is "four hundred million, six hundred thirty thousand, thirteen".