70444222 has 4 divisors (see below), whose sum is σ = 105666336. Its totient is φ = 35222110.

The previous prime is 70444217. The next prime is 70444223. The reversal of 70444222 is 22244407.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22244407 = 839 ⋅26513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70444223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17611054 + ... + 17611057.

It is an arithmetic number, because the mean of its divisors is an integer number (26416584).

Almost surely, 2^70444222 is an apocalyptic number.

70444222 is a deficient number, since it is larger than the sum of its proper divisors (35222114).

70444222 is a wasteful number, since it uses less digits than its factorization.

70444222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35222113.

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 70444222 is about 8393.1056230694. The cubic root of 70444222 is about 412.9984854559.

Adding to 70444222 its reverse (22244407), we get a palindrome (92688629).

The spelling of 70444222 in words is "seventy million, four hundred forty-four thousand, two hundred twenty-two".