70224172 has 6 divisors (see below), whose sum is σ = 122892308. Its totient is φ = 35112084.

The previous prime is 70224169. The next prime is 70224173. The reversal of 70224172 is 27142207.

It is not an unprimeable number, because it can be changed into a prime (70224173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8778018 + ... + 8778025.

Almost surely, 2^70224172 is an apocalyptic number.

It is an amenable number.

70224172 is a deficient number, since it is larger than the sum of its proper divisors (52668136).

70224172 is a wasteful number, since it uses less digits than its factorization.

70224172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17556047 (or 17556045 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 70224172 is about 8379.9863961703. The cubic root of 70224172 is about 412.5680025017.

Adding to 70224172 its reverse (27142207), we get a palindrome (97366379).

The spelling of 70224172 in words is "seventy million, two hundred twenty-four thousand, one hundred seventy-two".