899280144 has 375 divisors, whose sum is σ = 3225511157. Its totient is φ = 241823232.

The previous prime is 899280091. The next prime is 899280149. The reversal of 899280144 is 441082998.

The square root of 899280144 is 29988.

It is a perfect power (a square), and thus also a powerful number.

899280144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 700131600 + 199148544 = 26460^2 + 14112^2 .

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 899280144.

It is not an unprimeable number, because it can be changed into a prime (899280149) by changing a digit.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 52898824 + ... + 52898840.

Almost surely, 2^899280144 is an apocalyptic number.

899280144 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

899280144 is the 29988-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899280144

899280144 is an abundant number, since it is smaller than the sum of its proper divisors (2326231013).

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

899280144 is an equidigital number, since it uses as much as digits as its factorization.

899280144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The cubic root of 899280144 is about 965.2319036024.

The spelling of 899280144 in words is "eight hundred ninety-nine million, two hundred eighty thousand, one hundred forty-four".