1149049660 has 48 divisors (see below), whose sum is σ = 2656573920. Its totient is φ = 413994240.

The previous prime is 1149049639. The next prime is 1149049673. The reversal of 1149049660 is 669409411.

It is a super-2 number, since 2×1149049660² = 2640630242292231200, 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 15 ways as a sum of consecutive naturals, for example, 22 + ... + 47938.

It is an arithmetic number, because the mean of its divisors is an integer number (55345290).

Almost surely, 2^1149049660 is an apocalyptic number.

1149049660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1149049660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328286960).

1149049660 is an abundant number, since it is smaller than the sum of its proper divisors (1507524260).

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

1149049660 is a wasteful number, since it uses less digits than its factorization.

1149049660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48046 (or 48044 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1149049660 is about 33897.6350207503. The cubic root of 1149049660 is about 1047.4008761625.

The spelling of 1149049660 in words is "one billion, one hundred forty-nine million, forty-nine thousand, six hundred sixty".