1149368400 has 240 divisors, whose sum is σ = 4224094720. Its totient is φ = 296524800.

The previous prime is 1149368359. The next prime is 1149368401. The reversal of 1149368400 is 48639411.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149368401) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 333084 + ... + 336516.

Almost surely, 2^1149368400 is an apocalyptic number.

1149368400 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 1149368400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2112047360).

1149368400 is an abundant number, since it is smaller than the sum of its proper divisors (3074726320).

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

1149368400 is a wasteful number, since it uses less digits than its factorization.

1149368400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491 (or 3474 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1149368400 is about 33902.3362026867. The cubic root of 1149368400 is about 1047.4977149393.

The spelling of 1149368400 in words is "one billion, one hundred forty-nine million, three hundred sixty-eight thousand, four hundred".