400500213 has 8 divisors (see below), whose sum is σ = 534518400. Its totient is φ = 266741088.

The previous prime is 400500211. The next prime is 400500223. The reversal of 400500213 is 312005004.

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

It is not a de Polignac number, because 400500213 - 2¹ = 400500211 is a prime.

It is a super-2 number, since 2×400500213² = 320800841226090738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400500192 and 400500201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400500211) 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, 61128 + ... + 67361.

It is an arithmetic number, because the mean of its divisors is an integer number (66814800).

Almost surely, 2^400500213 is an apocalyptic number.

It is an amenable number.

400500213 is a deficient number, since it is larger than the sum of its proper divisors (134018187).

400500213 is a wasteful number, since it uses less digits than its factorization.

400500213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129531.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 400500213 is about 20012.5014178638. The cubic root of 400500213 is about 737.1133051982.

Adding to 400500213 its reverse (312005004), we get a palindrome (712505217).

The spelling of 400500213 in words is "four hundred million, five hundred thousand, two hundred thirteen".