1140984457 has 8 divisors (see below), whose sum is σ = 1157030784. Its totient is φ = 1125033888.

The previous prime is 1140984451. The next prime is 1140984479. The reversal of 1140984457 is 7544890411.

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 1140984457 - 2¹⁵ = 1140951689 is a prime.

It is a super-2 number, since 2×1140984457² = 2603691062231169698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140984451) 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, 228 + ... + 47770.

It is an arithmetic number, because the mean of its divisors is an integer number (144628848).

Almost surely, 2^1140984457 is an apocalyptic number.

It is an amenable number.

1140984457 is a deficient number, since it is larger than the sum of its proper divisors (16046327).

1140984457 is a wasteful number, since it uses less digits than its factorization.

1140984457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47879.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 1140984457 is about 33778.4614362466. The cubic root of 1140984457 is about 1044.9445441142.

The spelling of 1140984457 in words is "one billion, one hundred forty million, nine hundred eighty-four thousand, four hundred fifty-seven".