434671378 has 4 divisors (see below), whose sum is σ = 652007070. Its totient is φ = 217335688.

The previous prime is 434671373. The next prime is 434671387. The reversal of 434671378 is 873176434.

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., 358231329 + 76440049 = 18927^2 + 8743^2 .

It is not an unprimeable number, because it can be changed into a prime (434671373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108667843 + ... + 108667846.

Almost surely, 2^434671378 is an apocalyptic number.

434671378 is a deficient number, since it is larger than the sum of its proper divisors (217335692).

434671378 is a wasteful number, since it uses less digits than its factorization.

434671378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217335691.

The product of its digits is 338688, while the sum is 43.

The square root of 434671378 is about 20848.7740167138. The cubic root of 434671378 is about 757.5076352674.

The spelling of 434671378 in words is "four hundred thirty-four million, six hundred seventy-one thousand, three hundred seventy-eight".