70229632 has 64 divisors (see below), whose sum is σ = 157651200. Its totient is φ = 30873600.

The previous prime is 70229617. The next prime is 70229639. The reversal of 70229632 is 23692207.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 70229594 and 70229603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70229639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42844 + ... + 44452.

It is an arithmetic number, because the mean of its divisors is an integer number (2463300).

Almost surely, 2^70229632 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 70229632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78825600).

70229632 is an abundant number, since it is smaller than the sum of its proper divisors (87421568).

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

70229632 is a wasteful number, since it uses less digits than its factorization.

70229632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 1653 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 70229632 is about 8380.3121660234. The cubic root of 70229632 is about 412.5786947504.

The spelling of 70229632 in words is "seventy million, two hundred twenty-nine thousand, six hundred thirty-two".