70386432 has 72 divisors (see below), whose sum is σ = 192471216. Its totient is φ = 22818816.

The previous prime is 70386413. The next prime is 70386467. The reversal of 70386432 is 23468307.

It is a junction number, because it is equal to n+sod(n) for n = 70386393 and 70386402.

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, 27178 + ... + 29654.

Almost surely, 2^70386432 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 70386432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96235608).

70386432 is an abundant number, since it is smaller than the sum of its proper divisors (122084784).

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

70386432 is a wasteful number, since it uses less digits than its factorization.

70386432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533 (or 2519 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 70386432 is about 8389.6622101250. The cubic root of 70386432 is about 412.8855180074.

The spelling of 70386432 in words is "seventy million, three hundred eighty-six thousand, four hundred thirty-two".