70351428 has 48 divisors (see below), whose sum is σ = 188173440. Its totient is φ = 20039424.

The previous prime is 70351417. The next prime is 70351429. The reversal of 70351428 is 82415307.

It is a junction number, because it is equal to n+sod(n) for n = 70351395 and 70351404.

It is not an unprimeable number, because it can be changed into a prime (70351429) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31600 + ... + 33752.

It is an arithmetic number, because the mean of its divisors is an integer number (3920280).

Almost surely, 2^70351428 is an apocalyptic number.

It is an amenable number.

70351428 is an abundant number, since it is smaller than the sum of its proper divisors (117822012).

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

70351428 is a wasteful number, since it uses less digits than its factorization.

70351428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556 (or 2554 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 70351428 is about 8387.5758118779. The cubic root of 70351428 is about 412.8170623844.

The spelling of 70351428 in words is "seventy million, three hundred fifty-one thousand, four hundred twenty-eight".