549290420 has 48 divisors (see below), whose sum is σ = 1320641280. Its totient is φ = 187993344.

The previous prime is 549290381. The next prime is 549290447. The reversal of 549290420 is 24092945.

It is a Harshad number since it is a multiple of its sum of digits (35).

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 15 ways as a sum of consecutive naturals, for example, 83201 + ... + 89559.

It is an arithmetic number, because the mean of its divisors is an integer number (27513360).

Almost surely, 2^549290420 is an apocalyptic number.

It is an amenable number.

549290420 is an abundant number, since it is smaller than the sum of its proper divisors (771350860).

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

549290420 is a wasteful number, since it uses less digits than its factorization.

549290420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6992 (or 6990 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 549290420 is about 23436.9456201101. The cubic root of 549290420 is about 818.9687710943.

The spelling of 549290420 in words is "five hundred forty-nine million, two hundred ninety thousand, four hundred twenty".