434123323402 has 4 divisors (see below), whose sum is σ = 651184985106. Its totient is φ = 217061661700.

The previous prime is 434123323391. The next prime is 434123323409. The reversal of 434123323402 is 204323321434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 425066184841 + 9057138561 = 651971^2 + 95169^2 .

It is not an unprimeable number, because it can be changed into a prime (434123323409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108530830849 + ... + 108530830852.

Almost surely, 2^434123323402 is an apocalyptic number.

434123323402 is a deficient number, since it is larger than the sum of its proper divisors (217061661704).

434123323402 is a wasteful number, since it uses less digits than its factorization.

434123323402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217061661703.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 434123323402 its reverse (204323321434), we get a palindrome (638446644836).

The spelling of 434123323402 in words is "four hundred thirty-four billion, one hundred twenty-three million, three hundred twenty-three thousand, four hundred two".