561762434 has 4 divisors (see below), whose sum is σ = 842643654. Its totient is φ = 280881216.

The previous prime is 561762427. The next prime is 561762463. The reversal of 561762434 is 434267165.

It is a happy number.

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., 336612409 + 225150025 = 18347^2 + 15005^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140440607 + ... + 140440610.

Almost surely, 2^561762434 is an apocalyptic number.

561762434 is a deficient number, since it is larger than the sum of its proper divisors (280881220).

561762434 is a wasteful number, since it uses less digits than its factorization.

561762434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280881219.

The product of its digits is 120960, while the sum is 38.

The square root of 561762434 is about 23701.5280941968. The cubic root of 561762434 is about 825.1208560014.

The spelling of 561762434 in words is "five hundred sixty-one million, seven hundred sixty-two thousand, four hundred thirty-four".