434408738 has 4 divisors (see below), whose sum is σ = 651613110. Its totient is φ = 217204368.

The previous prime is 434408731. The next prime is 434408753. The reversal of 434408738 is 837804434.

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., 433763929 + 644809 = 20827^2 + 803^2 .

It is a junction number, because it is equal to n+sod(n) for n = 434408695 and 434408704.

It is not an unprimeable number, because it can be changed into a prime (434408731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108602183 + ... + 108602186.

Almost surely, 2^434408738 is an apocalyptic number.

434408738 is a deficient number, since it is larger than the sum of its proper divisors (217204372).

434408738 is a wasteful number, since it uses less digits than its factorization.

434408738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217204371.

The product of its (nonzero) digits is 258048, while the sum is 41.

The square root of 434408738 is about 20842.4743732600. The cubic root of 434408738 is about 757.3550357792.

The spelling of 434408738 in words is "four hundred thirty-four million, four hundred eight thousand, seven hundred thirty-eight".