1154728650 has 48 divisors (see below), whose sum is σ = 2878637184. Its totient is φ = 306324480.

The previous prime is 1154728637. The next prime is 1154728697. The reversal of 1154728650 is 568274511.

It is a junction number, because it is equal to n+sod(n) for n = 1154728599 and 1154728608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9007 + ... + 48893.

It is an arithmetic number, because the mean of its divisors is an integer number (59971608).

Almost surely, 2^1154728650 is an apocalyptic number.

1154728650 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 1154728650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1439318592).

1154728650 is an abundant number, since it is smaller than the sum of its proper divisors (1723908534).

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

1154728650 is a wasteful number, since it uses less digits than its factorization.

1154728650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40095 (or 40090 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 1154728650 is about 33981.2985331638. The cubic root of 1154728650 is about 1049.1235770534.

The spelling of 1154728650 in words is "one billion, one hundred fifty-four million, seven hundred twenty-eight thousand, six hundred fifty".