550442946 has 16 divisors (see below), whose sum is σ = 1148750784. Its totient is φ = 175503504.

The previous prime is 550442933. The next prime is 550442947. The reversal of 550442946 is 649244055.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550442947) 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, 1994221 + ... + 1994496.

It is an arithmetic number, because the mean of its divisors is an integer number (71796924).

Almost surely, 2^550442946 is an apocalyptic number.

550442946 is an abundant number, since it is smaller than the sum of its proper divisors (598307838).

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

550442946 is a wasteful number, since it uses less digits than its factorization.

550442946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988745.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 550442946 is about 23461.5205389591. The cubic root of 550442946 is about 819.5411601144.

The spelling of 550442946 in words is "five hundred fifty million, four hundred forty-two thousand, nine hundred forty-six".