70307232 has 48 divisors (see below), whose sum is σ = 187699680. Its totient is φ = 23036672.

The previous prime is 70307219. The next prime is 70307311. The reversal of 70307232 is 23270307.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543 + ... + 11870.

It is an arithmetic number, because the mean of its divisors is an integer number (3910410).

Almost surely, 2^70307232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70307232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93849840).

70307232 is an abundant number, since it is smaller than the sum of its proper divisors (117392448).

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

70307232 is a wasteful number, since it uses less digits than its factorization.

70307232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12485 (or 12477 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 70307232 is about 8384.9407869108. The cubic root of 70307232 is about 412.7305979713.

Adding to 70307232 its reverse (23270307), we get a palindrome (93577539).

The spelling of 70307232 in words is "seventy million, three hundred seven thousand, two hundred thirty-two".