70355628 has 120 divisors (see below), whose sum is σ = 213796352. Its totient is φ = 19758816.

The previous prime is 70355617. The next prime is 70355669. The reversal of 70355628 is 82655307.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 70355592 and 70355601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 151725 + ... + 152187.

Almost surely, 2^70355628 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 70355628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106898176).

70355628 is an abundant number, since it is smaller than the sum of its proper divisors (143440724).

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

70355628 is a wasteful number, since it uses less digits than its factorization.

70355628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 70355628 is about 8387.8261784565. The cubic root of 70355628 is about 412.8252773191.

The spelling of 70355628 in words is "seventy million, three hundred fifty-five thousand, six hundred twenty-eight".