1144469736 has 192 divisors, whose sum is σ = 3351741120. Its totient is φ = 365575680.

The previous prime is 1144469701. The next prime is 1144469743. The reversal of 1144469736 is 6379644411.

1144469736 is a `hidden beast` number, since 114 + 4 + 469 + 73 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1144469691 and 1144469700.

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, 6615346 + ... + 6615518.

It is an arithmetic number, because the mean of its divisors is an integer number (17456985).

Almost surely, 2^1144469736 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 1144469736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675870560).

1144469736 is an abundant number, since it is smaller than the sum of its proper divisors (2207271384).

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

1144469736 is a wasteful number, since it uses less digits than its factorization.

1144469736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 302 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 1144469736 is about 33830.0123558949. The cubic root of 1144469736 is about 1046.0074336501.

The spelling of 1144469736 in words is "one billion, one hundred forty-four million, four hundred sixty-nine thousand, seven hundred thirty-six".