1189440383 has 2 divisors, whose sum is σ = 1189440384. Its totient is φ = 1189440382.

The previous prime is 1189440361. The next prime is 1189440397. The reversal of 1189440383 is 3830449811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1189440383 - 2¹⁶ = 1189374847 is a prime.

It is a super-2 number, since 2×1189440383² = 2829536849422373378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1189440383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1189440283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594720191 + 594720192.

It is an arithmetic number, because the mean of its divisors is an integer number (594720192).

Almost surely, 2^1189440383 is an apocalyptic number.

1189440383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189440383 is an equidigital number, since it uses as much as digits as its factorization.

1189440383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1189440383 is about 34488.2644242937. The cubic root of 1189440383 is about 1059.5323625503.

The spelling of 1189440383 in words is "one billion, one hundred eighty-nine million, four hundred forty thousand, three hundred eighty-three".