556940834 has 4 divisors (see below), whose sum is σ = 835411254. Its totient is φ = 278470416.

The previous prime is 556940821. The next prime is 556940861. The reversal of 556940834 is 438049655.

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., 319873225 + 237067609 = 17885^2 + 15397^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139235207 + ... + 139235210.

Almost surely, 2^556940834 is an apocalyptic number.

556940834 is a deficient number, since it is larger than the sum of its proper divisors (278470420).

556940834 is a wasteful number, since it uses less digits than its factorization.

556940834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278470419.

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 556940834 is about 23599.5939371846. The cubic root of 556940834 is about 822.7534023959.

The spelling of 556940834 in words is "five hundred fifty-six million, nine hundred forty thousand, eight hundred thirty-four".