1029116140 has 48 divisors (see below), whose sum is σ = 2428590528. Its totient is φ = 363458304.

The previous prime is 1029116129. The next prime is 1029116141. The reversal of 1029116140 is 416119201.

It is not an unprimeable number, because it can be changed into a prime (1029116141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80067 + ... + 92026.

It is an arithmetic number, because the mean of its divisors is an integer number (50595636).

Almost surely, 2^1029116140 is an apocalyptic number.

1029116140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1029116140 is an abundant number, since it is smaller than the sum of its proper divisors (1399474388).

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

1029116140 is a wasteful number, since it uses less digits than its factorization.

1029116140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172138 (or 172136 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1029116140 is about 32079.8400868832. The cubic root of 1029116140 is about 1009.6126802954.

The spelling of 1029116140 in words is "one billion, twenty-nine million, one hundred sixteen thousand, one hundred forty".