402231434 has 8 divisors (see below), whose sum is σ = 658196928. Its totient is φ = 182832460.

The previous prime is 402231419. The next prime is 402231451. The reversal of 402231434 is 434132204.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9141602 + ... + 9141645.

It is an arithmetic number, because the mean of its divisors is an integer number (82274616).

Almost surely, 2^402231434 is an apocalyptic number.

402231434 is a deficient number, since it is larger than the sum of its proper divisors (255965494).

402231434 is a wasteful number, since it uses less digits than its factorization.

402231434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18283260.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 402231434 is about 20055.7082647310. The cubic root of 402231434 is about 738.1738720230.

Adding to 402231434 its reverse (434132204), we get a palindrome (836363638).

The spelling of 402231434 in words is "four hundred two million, two hundred thirty-one thousand, four hundred thirty-four".