70743232 has 56 divisors (see below), whose sum is σ = 168899840. Its totient is φ = 28719360.

The previous prime is 70743229. The next prime is 70743241. The reversal of 70743232 is 23234707.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

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

It is a self number, because there is not a number n which added to its sum of digits gives 70743232.

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, 4357 + ... + 12667.

Almost surely, 2^70743232 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 70743232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84449920).

70743232 is an abundant number, since it is smaller than the sum of its proper divisors (98156608).

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

70743232 is a wasteful number, since it uses less digits than its factorization.

70743232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8349 (or 8339 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 70743232 is about 8410.8995951682. The cubic root of 70743232 is about 413.5820032151.

Adding to 70743232 its reverse (23234707), we get a palindrome (93977939).

The spelling of 70743232 in words is "seventy million, seven hundred forty-three thousand, two hundred thirty-two".