70709232 has 40 divisors (see below), whose sum is σ = 199272960. Its totient is φ = 21426880.

The previous prime is 70709227. The next prime is 70709251. The reversal of 70709232 is 23290707.

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 70709232.

It is a congruent number.

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, 66432 + ... + 67487.

It is an arithmetic number, because the mean of its divisors is an integer number (4981824).

Almost surely, 2^70709232 is an apocalyptic number.

It is an amenable number.

70709232 is an abundant number, since it is smaller than the sum of its proper divisors (128563728).

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

70709232 is a wasteful number, since it uses less digits than its factorization.

70709232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133941 (or 133935 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 70709232 is about 8408.8781653678. The cubic root of 70709232 is about 413.5157351964.

Adding to 70709232 its reverse (23290707), we get a palindrome (93999939).

The spelling of 70709232 in words is "seventy million, seven hundred nine thousand, two hundred thirty-two".