70532140 has 48 divisors (see below), whose sum is σ = 172166400. Its totient is φ = 23769792.

The previous prime is 70532113. The next prime is 70532171. The reversal of 70532140 is 4123507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3991 + ... + 12529.

It is an arithmetic number, because the mean of its divisors is an integer number (3586800).

Almost surely, 2^70532140 is an apocalyptic number.

70532140 is a gapful number since it is divisible by the number (70) 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 70532140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86083200).

70532140 is an abundant number, since it is smaller than the sum of its proper divisors (101634260).

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

70532140 is a wasteful number, since it uses less digits than its factorization.

70532140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8614 (or 8612 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 70532140 is about 8398.3415029397. The cubic root of 70532140 is about 413.1702284543.

Adding to 70532140 its reverse (4123507), we get a palindrome (74655647).

The spelling of 70532140 in words is "seventy million, five hundred thirty-two thousand, one hundred forty".