552440 has 32 divisors (see below), whose sum is σ = 1421280. Its totient is φ = 189312.

The previous prime is 552403. The next prime is 552469. The reversal of 552440 is 44255.

552440 = T₈₉ + T₉₀ + ... + T₁₅₈.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 552440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707 + ... + 1266.

It is an arithmetic number, because the mean of its divisors is an integer number (44415).

2⁵⁵²⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

552440 is an abundant number, since it is smaller than the sum of its proper divisors (868840).

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

552440 is a wasteful number, since it uses less digits than its factorization.

552440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991 (or 1987 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 552440 is about 743.2630759025. The cubic root of 552440 is about 82.0531085664.

Adding to 552440 its reverse (44255), we get a palindrome (596695).

The spelling of 552440 in words is "five hundred fifty-two thousand, four hundred forty".