434930378 has 16 divisors (see below), whose sum is σ = 669339720. Its totient is φ = 211833600.

The previous prime is 434930369. The next prime is 434930381. The reversal of 434930378 is 873039434.

It can be written as a sum of positive squares in 4 ways, for example, as 265592209 + 169338169 = 16297^2 + 13013^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54398 + ... + 61878.

Almost surely, 2^434930378 is an apocalyptic number.

434930378 is a deficient number, since it is larger than the sum of its proper divisors (234409342).

434930378 is a wasteful number, since it uses less digits than its factorization.

434930378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8233.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 434930378 is about 20854.9844881266. The cubic root of 434930378 is about 757.6580596514.

The spelling of 434930378 in words is "four hundred thirty-four million, nine hundred thirty thousand, three hundred seventy-eight".