35128140 has 48 divisors (see below), whose sum is σ = 99617280. Its totient is φ = 9247680.

The previous prime is 35128099. The next prime is 35128141. The reversal of 35128140 is 4182153.

It is a self number, because there is not a number n which added to its sum of digits gives 35128140.

It is not an unprimeable number, because it can be changed into a prime (35128141) 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, 1035 + ... + 8445.

It is an arithmetic number, because the mean of its divisors is an integer number (2075360).

Almost surely, 2^35128140 is an apocalyptic number.

35128140 is a gapful number since it is divisible by the number (30) 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 35128140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49808640).

35128140 is an abundant number, since it is smaller than the sum of its proper divisors (64489140).

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

35128140 is a wasteful number, since it uses less digits than its factorization.

35128140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7502 (or 7500 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 35128140 is about 5926.8996954563. The cubic root of 35128140 is about 327.5053395396.

The spelling of 35128140 in words is "thirty-five million, one hundred twenty-eight thousand, one hundred forty".