70172424 has 192 divisors, whose sum is σ = 230480640. Its totient is φ = 18869760.

The previous prime is 70172423. The next prime is 70172449. The reversal of 70172424 is 42427107.

It is a happy number.

70172424 is a `hidden beast` number, since 70 + 172 + 424 = 666.

It is not an unprimeable number, because it can be changed into a prime (70172423) 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 47 ways as a sum of consecutive naturals, for example, 988309 + ... + 988379.

It is an arithmetic number, because the mean of its divisors is an integer number (1200420).

Almost surely, 2^70172424 is an apocalyptic number.

70172424 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70172424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115240320).

70172424 is an abundant number, since it is smaller than the sum of its proper divisors (160308216).

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

70172424 is a wasteful number, since it uses less digits than its factorization.

70172424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 70172424 is about 8376.8982326396. The cubic root of 70172424 is about 412.4666375221.

The spelling of 70172424 in words is "seventy million, one hundred seventy-two thousand, four hundred twenty-four".