427990550 has 24 divisors (see below), whose sum is σ = 857299296. Its totient is φ = 158027040.

The previous prime is 427990547. The next prime is 427990597. The reversal of 427990550 is 55099724.

It is a junction number, because it is equal to n+sod(n) for n = 427990498 and 427990507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328574 + ... + 329873.

It is an arithmetic number, because the mean of its divisors is an integer number (35720804).

Almost surely, 2^427990550 is an apocalyptic number.

427990550 is an abundant number, since it is smaller than the sum of its proper divisors (429308746).

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

427990550 is a wasteful number, since it uses less digits than its factorization.

427990550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658472 (or 658467 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 427990550 is about 20687.9324728210. The cubic root of 427990550 is about 753.6066578535.

The spelling of 427990550 in words is "four hundred twenty-seven million, nine hundred ninety thousand, five hundred fifty".