557211340 has 144 divisors (see below), whose sum is σ = 1447891200. Its totient is φ = 179211648.

The previous prime is 557211311. The next prime is 557211353. The reversal of 557211340 is 43112755.

It is a happy number.

557211340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 557211299 and 557211308.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1329651 + ... + 1330069.

It is an arithmetic number, because the mean of its divisors is an integer number (10054800).

Almost surely, 2^557211340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 557211340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723945600).

557211340 is an abundant number, since it is smaller than the sum of its proper divisors (890679860).

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

557211340 is a wasteful number, since it uses less digits than its factorization.

557211340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 557211340 is about 23605.3243993807. The cubic root of 557211340 is about 822.8865845316.

The spelling of 557211340 in words is "five hundred fifty-seven million, two hundred eleven thousand, three hundred forty".