1140887389 has 8 divisors (see below), whose sum is σ = 1182840320. Its totient is φ = 1099256400.

The previous prime is 1140887383. The next prime is 1140887411. The reversal of 1140887389 is 9837880411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1140887389 - 2⁷ = 1140887261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140887383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73257 + ... + 87454.

It is an arithmetic number, because the mean of its divisors is an integer number (147855040).

Almost surely, 2^1140887389 is an apocalyptic number.

It is an amenable number.

1140887389 is a deficient number, since it is larger than the sum of its proper divisors (41952931).

1140887389 is a wasteful number, since it uses less digits than its factorization.

1140887389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160971.

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 1140887389 is about 33777.0245729253. The cubic root of 1140887389 is about 1044.9149107706.

The spelling of 1140887389 in words is "one billion, one hundred forty million, eight hundred eighty-seven thousand, three hundred eighty-nine".