555420340 has 12 divisors (see below), whose sum is σ = 1166382756. Its totient is φ = 222168128.

The previous prime is 555420329. The next prime is 555420367. The reversal of 555420340 is 43024555.

It can be written as a sum of positive squares in 2 ways, for example, as 155900196 + 399520144 = 12486^2 + 19988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 555420299 and 555420308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13885489 + ... + 13885528.

It is an arithmetic number, because the mean of its divisors is an integer number (97198563).

Almost surely, 2^555420340 is an apocalyptic number.

It is an amenable number.

555420340 is an abundant number, since it is smaller than the sum of its proper divisors (610962416).

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

555420340 is a wasteful number, since it uses less digits than its factorization.

555420340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27771026 (or 27771024 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 555420340 is about 23567.3575099119. The cubic root of 555420340 is about 822.0039919848.

Adding to 555420340 its reverse (43024555), we get a palindrome (598444895).

The spelling of 555420340 in words is "five hundred fifty-five million, four hundred twenty thousand, three hundred forty".