1149668190 has 144 divisors (see below), whose sum is σ = 3308642064. Its totient is φ = 276756480.

The previous prime is 1149668161. The next prime is 1149668239. The reversal of 1149668190 is 918669411.

1149668190 is a `hidden beast` number, since 11 + 496 + 68 + 1 + 90 = 666.

It is a super-2 number, since 2×1149668190² = 2643473894195752200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2101497 + ... + 2102043.

It is an arithmetic number, because the mean of its divisors is an integer number (22976681).

Almost surely, 2^1149668190 is an apocalyptic number.

1149668190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1149668190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1654321032).

1149668190 is an abundant number, since it is smaller than the sum of its proper divisors (2158973874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1149668190 is a wasteful number, since it uses less digits than its factorization.

1149668190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 1149668190 is about 33906.7572911359. The cubic root of 1149668190 is about 1047.5887800382.

The spelling of 1149668190 in words is "one billion, one hundred forty-nine million, six hundred sixty-eight thousand, one hundred ninety".