552316440 has 128 divisors (see below), whose sum is σ = 1790530560. Its totient is φ = 135489024.

The previous prime is 552316439. The next prime is 552316447. The reversal of 552316440 is 44613255.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 552316398 and 552316407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552316447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 759357 + ... + 760083.

It is an arithmetic number, because the mean of its divisors is an integer number (13988520).

Almost surely, 2^552316440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 552316440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (895265280).

552316440 is an abundant number, since it is smaller than the sum of its proper divisors (1238214120).

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

552316440 is a wasteful number, since it uses less digits than its factorization.

552316440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 552316440 is about 23501.4135745065. The cubic root of 552316440 is about 820.4699071470.

Adding to 552316440 its reverse (44613255), we get a palindrome (596929695).

The spelling of 552316440 in words is "five hundred fifty-two million, three hundred sixteen thousand, four hundred forty".