70181430 has 32 divisors (see below), whose sum is σ = 183748608. Its totient is φ = 17013600.

The previous prime is 70181413. The next prime is 70181437. The reversal of 70181430 is 3418107.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 70181430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70181437) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 106006 + ... + 106665.

It is an arithmetic number, because the mean of its divisors is an integer number (5742144).

Almost surely, 2^70181430 is an apocalyptic number.

70181430 is an abundant number, since it is smaller than the sum of its proper divisors (113567178).

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

70181430 is a wasteful number, since it uses less digits than its factorization.

70181430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212692.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 70181430 is about 8377.4357651969. The cubic root of 70181430 is about 412.4842822294.

Adding to 70181430 its reverse (3418107), we get a palindrome (73599537).

It can be divided in two parts, 7018 and 1430, that added together give a palindrome (8448).

The spelling of 70181430 in words is "seventy million, one hundred eighty-one thousand, four hundred thirty".