402000434 has 8 divisors (see below), whose sum is σ = 657818928. Its totient is φ = 182727460.

The previous prime is 402000433. The next prime is 402000437. The reversal of 402000434 is 434000204.

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

It is not an unprimeable number, because it can be changed into a prime (402000433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9136352 + ... + 9136395.

It is an arithmetic number, because the mean of its divisors is an integer number (82227366).

Almost surely, 2^402000434 is an apocalyptic number.

402000434 is a deficient number, since it is larger than the sum of its proper divisors (255818494).

402000434 is a wasteful number, since it uses less digits than its factorization.

402000434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18272760.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 402000434 is about 20049.9484787368. The cubic root of 402000434 is about 738.0325348034.

Adding to 402000434 its reverse (434000204), we get a palindrome (836000638).

The spelling of 402000434 in words is "four hundred two million, four hundred thirty-four", and thus it is an aban number.