70403328 has 54 divisors (see below), whose sum is σ = 202996794. Its totient is φ = 23467008.

The previous prime is 70403327. The next prime is 70403357. The reversal of 70403328 is 82330407.

It can be written as a sum of positive squares in only one way, i.e., 44515584 + 25887744 = 6672^2 + 5088^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70403323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12975 + ... + 17582.

Almost surely, 2^70403328 is an apocalyptic number.

It is an amenable number.

70403328 is an abundant number, since it is smaller than the sum of its proper divisors (132593466).

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

70403328 is a wasteful number, since it uses less digits than its factorization.

70403328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30579 (or 30562 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 70403328 is about 8390.6691032360. The cubic root of 70403328 is about 412.9185525729.

The spelling of 70403328 in words is "seventy million, four hundred three thousand, three hundred twenty-eight".