88285140 has 60 divisors (see below), whose sum is σ = 276958836. Its totient is φ = 23542272.

The previous prime is 88285139. The next prime is 88285147. The reversal of 88285140 is 4158288.

It can be written as a sum of positive squares in 2 ways, for example, as 31945104 + 56340036 = 5652^2 + 7506^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 88285095 and 88285104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88285147) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25629 + ... + 28868.

Almost surely, 2^88285140 is an apocalyptic number.

It is an amenable number.

88285140 is an abundant number, since it is smaller than the sum of its proper divisors (188673696).

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

88285140 is a wasteful number, since it uses less digits than its factorization.

88285140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54518 (or 54507 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 88285140 is about 9396.0172413635. The cubic root of 88285140 is about 445.2759135593.

The spelling of 88285140 in words is "eighty-eight million, two hundred eighty-five thousand, one hundred forty".