70442401 has 4 divisors (see below), whose sum is σ = 71636400. Its totient is φ = 69248404.

The previous prime is 70442389. The next prime is 70442423. The reversal of 70442401 is 10424407.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70442401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70442431) 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 3 ways as a sum of consecutive naturals, for example, 596911 + ... + 597028.

It is an arithmetic number, because the mean of its divisors is an integer number (17909100).

Almost surely, 2^70442401 is an apocalyptic number.

It is an amenable number.

70442401 is a deficient number, since it is larger than the sum of its proper divisors (1193999).

70442401 is a wasteful number, since it uses less digits than its factorization.

70442401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193998.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 70442401 is about 8392.9971404737. The cubic root of 70442401 is about 412.9949267220.

Adding to 70442401 its reverse (10424407), we get a palindrome (80866808).

The spelling of 70442401 in words is "seventy million, four hundred forty-two thousand, four hundred one".