556393746 has 16 divisors (see below), whose sum is σ = 1124260704. Its totient is φ = 183552384.

The previous prime is 556393723. The next prime is 556393781. The reversal of 556393746 is 647393655.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 556393695 and 556393704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477420 + ... + 478583.

It is an arithmetic number, because the mean of its divisors is an integer number (70266294).

Almost surely, 2^556393746 is an apocalyptic number.

556393746 is an abundant number, since it is smaller than the sum of its proper divisors (567866958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556393746 is a wasteful number, since it uses less digits than its factorization.

556393746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956105.

The product of its digits is 2041200, while the sum is 48.

The square root of 556393746 is about 23588.0000423944. Note that the first 4 decimals coincide. The cubic root of 556393746 is about 822.4839147761.

Subtracting 556393746 from its reverse (647393655), we obtain a palindrome (90999909).

The spelling of 556393746 in words is "five hundred fifty-six million, three hundred ninety-three thousand, seven hundred forty-six".