402213430 has 8 divisors (see below), whose sum is σ = 723984192. Its totient is φ = 160885368.

The previous prime is 402213419. The next prime is 402213439. The reversal of 402213430 is 34312204.

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

It is a junction number, because it is equal to n+sod(n) for n = 402213398 and 402213407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402213439) 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 3 ways as a sum of consecutive naturals, for example, 20110662 + ... + 20110681.

It is an arithmetic number, because the mean of its divisors is an integer number (90498024).

Almost surely, 2^402213430 is an apocalyptic number.

402213430 is a deficient number, since it is larger than the sum of its proper divisors (321770762).

402213430 is a wasteful number, since it uses less digits than its factorization.

402213430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40221350.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 402213430 is about 20055.2594099403. The cubic root of 402213430 is about 738.1628582304.

Adding to 402213430 its reverse (34312204), we get a palindrome (436525634).

The spelling of 402213430 in words is "four hundred two million, two hundred thirteen thousand, four hundred thirty".