400213430 has 16 divisors (see below), whose sum is σ = 720690480. Its totient is φ = 160017312.

The previous prime is 400213403. The next prime is 400213481. The reversal of 400213430 is 34312004.

It is a junction number, because it is equal to n+sod(n) for n = 400213399 and 400213408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21092 + ... + 35288.

It is an arithmetic number, because the mean of its divisors is an integer number (45043155).

Almost surely, 2^400213430 is an apocalyptic number.

400213430 is a deficient number, since it is larger than the sum of its proper divisors (320477050).

400213430 is a wasteful number, since it uses less digits than its factorization.

400213430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17023.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 400213430 is about 20005.3350384341. The cubic root of 400213430 is about 736.9373235676.

Adding to 400213430 its reverse (34312004), we get a palindrome (434525434).

The spelling of 400213430 in words is "four hundred million, two hundred thirteen thousand, four hundred thirty".