1140429999 has 8 divisors (see below), whose sum is σ = 1586685312. Its totient is φ = 727230680.

The previous prime is 1140429977. The next prime is 1140430009. The reversal of 1140429999 is 9999240411.

It is a happy number.

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 1140429999 - 2¹⁵ = 1140397231 is a prime.

It is a super-3 number, since 3×1140429999³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140429299) 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, 8263917 + ... + 8264054.

It is an arithmetic number, because the mean of its divisors is an integer number (198335664).

Almost surely, 2^1140429999 is an apocalyptic number.

1140429999 is a deficient number, since it is larger than the sum of its proper divisors (446255313).

1140429999 is a wasteful number, since it uses less digits than its factorization.

1140429999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16527997.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 1140429999 is about 33770.2531675438. The cubic root of 1140429999 is about 1044.7752541258.

The spelling of 1140429999 in words is "one billion, one hundred forty million, four hundred twenty-nine thousand, nine hundred ninety-nine".