1144897200 has 240 divisors, whose sum is σ = 4101701760. Its totient is φ = 303310080.

The previous prime is 1144897199. The next prime is 1144897211. The reversal of 1144897200 is 27984411.

1144897200 is a `hidden beast` number, since 1 + 1 + 448 + 9 + 7 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2451367 + ... + 2451833.

It is an arithmetic number, because the mean of its divisors is an integer number (17090424).

Almost surely, 2^1144897200 is an apocalyptic number.

1144897200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144897200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2050850880).

1144897200 is an abundant number, since it is smaller than the sum of its proper divisors (2956804560).

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

1144897200 is a wasteful number, since it uses less digits than its factorization.

1144897200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1144897200 is about 33836.3295881808. The cubic root of 1144897200 is about 1046.1376467525.

The spelling of 1144897200 in words is "one billion, one hundred forty-four million, eight hundred ninety-seven thousand, two hundred".