405402230 has 32 divisors (see below), whose sum is σ = 773724960. Its totient is φ = 152409600.

The previous prime is 405402227. The next prime is 405402241. The reversal of 405402230 is 32204504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177536 + ... + 179804.

It is an arithmetic number, because the mean of its divisors is an integer number (24178905).

Almost surely, 2^405402230 is an apocalyptic number.

405402230 is a deficient number, since it is larger than the sum of its proper divisors (368322730).

405402230 is a wasteful number, since it uses less digits than its factorization.

405402230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 405402230 is about 20134.6028021414. The cubic root of 405402230 is about 740.1084756976.

Adding to 405402230 its reverse (32204504), we get a palindrome (437606734).

The spelling of 405402230 in words is "four hundred five million, four hundred two thousand, two hundred thirty".