201434930 has 16 divisors (see below), whose sum is σ = 365793624. Its totient is φ = 79860480.

The previous prime is 201434879. The next prime is 201434939. The reversal of 201434930 is 39434102.

It can be written as a sum of positive squares in 4 ways, for example, as 82864609 + 118570321 = 9103^2 + 10889^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201434930.

It is not an unprimeable number, because it can be changed into a prime (201434939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88001 + ... + 90260.

Almost surely, 2^201434930 is an apocalyptic number.

201434930 is a deficient number, since it is larger than the sum of its proper divisors (164358694).

201434930 is a wasteful number, since it uses less digits than its factorization.

201434930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178381.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 201434930 is about 14192.7773885170. Note that the first 3 decimals coincide. The cubic root of 201434930 is about 586.1988030450.

The spelling of 201434930 in words is "two hundred one million, four hundred thirty-four thousand, nine hundred thirty".