1149945408 has 84 divisors (see below), whose sum is σ = 3309079488. Its totient is φ = 381807360.

The previous prime is 1149945397. The next prime is 1149945427. The reversal of 1149945408 is 8045499411.

It is a happy number.

1149945408 is a `hidden beast` number, since 1 + 14 + 9 + 94 + 540 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147693 + ... + 155283.

Almost surely, 2^1149945408 is an apocalyptic number.

1149945408 is a gapful number since it is divisible by the number (18) 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 1149945408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1654539744).

1149945408 is an abundant number, since it is smaller than the sum of its proper divisors (2159134080).

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

1149945408 is a wasteful number, since it uses less digits than its factorization.

1149945408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7872 (or 7859 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1149945408 is about 33910.8449909465. The cubic root of 1149945408 is about 1047.6729745128.

The spelling of 1149945408 in words is "one billion, one hundred forty-nine million, nine hundred forty-five thousand, four hundred eight".