555449442 has 16 divisors (see below), whose sum is σ = 1111693440. Its totient is φ = 185017392.

The previous prime is 555449437. The next prime is 555449443. The reversal of 555449442 is 244944555.

It is a super-2 number, since 2×555449442² = 617048165236222728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 555449394 and 555449403.

It is not an unprimeable number, because it can be changed into a prime (555449443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23818 + ... + 40965.

It is an arithmetic number, because the mean of its divisors is an integer number (69480840).

Almost surely, 2^555449442 is an apocalyptic number.

555449442 is an abundant number, since it is smaller than the sum of its proper divisors (556243998).

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

555449442 is a wasteful number, since it uses less digits than its factorization.

555449442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66217.

The product of its digits is 576000, while the sum is 42.

The square root of 555449442 is about 23567.9749236119. The cubic root of 555449442 is about 822.0183484044.

The spelling of 555449442 in words is "five hundred fifty-five million, four hundred forty-nine thousand, four hundred forty-two".