229736978 has 4 divisors (see below), whose sum is σ = 344605470. Its totient is φ = 114868488.

The previous prime is 229736953. The next prime is 229737007. The reversal of 229736978 is 879637922.

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., 117440569 + 112296409 = 10837^2 + 10597^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 57434243 + ... + 57434246.

Almost surely, 2^229736978 is an apocalyptic number.

229736978 is a deficient number, since it is larger than the sum of its proper divisors (114868492).

229736978 is a wasteful number, since it uses less digits than its factorization.

229736978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114868491.

The product of its digits is 2286144, while the sum is 53.

The square root of 229736978 is about 15157.0768289931. The cubic root of 229736978 is about 612.4589253589.

The spelling of 229736978 in words is "two hundred twenty-nine million, seven hundred thirty-six thousand, nine hundred seventy-eight".