1149206984 has 16 divisors (see below), whose sum is σ = 2155124400. Its totient is φ = 574507152.

The previous prime is 1149206977. The next prime is 1149207023. The reversal of 1149206984 is 4896029411.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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, 80327 + ... + 93545.

It is an arithmetic number, because the mean of its divisors is an integer number (134695275).

Almost surely, 2^1149206984 is an apocalyptic number.

It is an amenable number.

1149206984 is a deficient number, since it is larger than the sum of its proper divisors (1005917416).

1149206984 is a wasteful number, since it uses less digits than its factorization.

1149206984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24092 (or 24088 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 1149206984 is about 33899.9555161950. The cubic root of 1149206984 is about 1047.4486761782.

The spelling of 1149206984 in words is "one billion, one hundred forty-nine million, two hundred six thousand, nine hundred eighty-four".