1140249802 has 8 divisors (see below), whose sum is σ = 1727309412. Its totient is φ = 564480000.

The previous prime is 1140249787. The next prime is 1140249809. The reversal of 1140249802 is 2089420411.

It can be written as a sum of positive squares in 2 ways, for example, as 932630521 + 207619281 = 30539^2 + 14409^2 .

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

It is a super-2 number, since 2×1140249802² = 2600339221922078408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1140249809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2822199 + ... + 2822602.

Almost surely, 2^1140249802 is an apocalyptic number.

1140249802 is a deficient number, since it is larger than the sum of its proper divisors (587059610).

1140249802 is a wasteful number, since it uses less digits than its factorization.

1140249802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5644904.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 1140249802 is about 33767.5850780005. The cubic root of 1140249802 is about 1044.7202236305.

The spelling of 1140249802 in words is "one billion, one hundred forty million, two hundred forty-nine thousand, eight hundred two".