70423430 has 32 divisors (see below), whose sum is σ = 158042880. Its totient is φ = 21949920.

The previous prime is 70423421. The next prime is 70423439. The reversal of 70423430 is 3432407.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70423421) and next prime (70423439).

It is a junction number, because it is equal to n+sod(n) for n = 70423396 and 70423405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70423439) 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, 44960 + ... + 46499.

It is an arithmetic number, because the mean of its divisors is an integer number (4938840).

Almost surely, 2^70423430 is an apocalyptic number.

70423430 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70423430 is an abundant number, since it is smaller than the sum of its proper divisors (87619450).

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

70423430 is a wasteful number, since it uses less digits than its factorization.

70423430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91484.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 70423430 is about 8391.8668959892. The cubic root of 70423430 is about 412.9578485318.

Adding to 70423430 its reverse (3432407), we get a palindrome (73855837).

The spelling of 70423430 in words is "seventy million, four hundred twenty-three thousand, four hundred thirty".