245404234 has 4 divisors (see below), whose sum is σ = 368106354. Its totient is φ = 122702116.

The previous prime is 245404219. The next prime is 245404241. The reversal of 245404234 is 432404542.

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., 207273609 + 38130625 = 14397^2 + 6175^2 .

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, 61351057 + ... + 61351060.

Almost surely, 2^245404234 is an apocalyptic number.

245404234 is a deficient number, since it is larger than the sum of its proper divisors (122702120).

245404234 is a wasteful number, since it uses less digits than its factorization.

245404234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122702119.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 245404234 is about 15665.3833020453. The cubic root of 245404234 is about 626.0764247114.

Adding to 245404234 its reverse (432404542), we get a palindrome (677808776).

The spelling of 245404234 in words is "two hundred forty-five million, four hundred four thousand, two hundred thirty-four".