1189401190 has 8 divisors (see below), whose sum is σ = 2140922160. Its totient is φ = 475760472.

The previous prime is 1189401131. The next prime is 1189401217. The reversal of 1189401190 is 911049811.

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

It is a super-2 number, since 2×1189401190² = 2829350381546832200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59470050 + ... + 59470069.

It is an arithmetic number, because the mean of its divisors is an integer number (267615270).

Almost surely, 2^1189401190 is an apocalyptic number.

1189401190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1189401190 is a deficient number, since it is larger than the sum of its proper divisors (951520970).

1189401190 is a wasteful number, since it uses less digits than its factorization.

1189401190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118940126.

The product of its (nonzero) digits is 2592, while the sum is 34.

The square root of 1189401190 is about 34487.6962118376. The cubic root of 1189401190 is about 1059.5207249465.

The spelling of 1189401190 in words is "one billion, one hundred eighty-nine million, four hundred one thousand, one hundred ninety".