70130424 has 128 divisors (see below), whose sum is σ = 218211840. Its totient is φ = 18289152.

The previous prime is 70130413. The next prime is 70130449. The reversal of 70130424 is 42403107.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 70130424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355894 + ... + 356090.

It is an arithmetic number, because the mean of its divisors is an integer number (1704780).

Almost surely, 2^70130424 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 70130424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109105920).

70130424 is an abundant number, since it is smaller than the sum of its proper divisors (148081416).

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

70130424 is a wasteful number, since it uses less digits than its factorization.

70130424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 70130424 is about 8374.3909629298. The cubic root of 70130424 is about 412.3843304698.

It can be divided in two parts, 701 and 30424, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 70130424 in words is "seventy million, one hundred thirty thousand, four hundred twenty-four".