70231752 has 128 divisors (see below), whose sum is σ = 208560000. Its totient is φ = 21835008.

The previous prime is 70231751. The next prime is 70231753. The reversal of 70231752 is 25713207.

It is an interprime number because it is at equal distance from previous prime (70231751) and next prime (70231753).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (70231751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447258 + ... + 447414.

It is an arithmetic number, because the mean of its divisors is an integer number (1629375).

Almost surely, 2^70231752 is an apocalyptic number.

70231752 is a gapful number since it is divisible by the number (72) 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 70231752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104280000).

70231752 is an abundant number, since it is smaller than the sum of its proper divisors (138328248).

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

70231752 is a wasteful number, since it uses less digits than its factorization.

70231752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 70231752 is about 8380.4386520038. The cubic root of 70231752 is about 412.5828461700.

Adding to 70231752 its reverse (25713207), we get a palindrome (95944959).

The spelling of 70231752 in words is "seventy million, two hundred thirty-one thousand, seven hundred fifty-two".