172744070 has 32 divisors (see below), whose sum is σ = 323791776. Its totient is φ = 66297600.

The previous prime is 172744069. The next prime is 172744073. The reversal of 172744070 is 70447271.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172744073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21557 + ... + 28463.

It is an arithmetic number, because the mean of its divisors is an integer number (10118493).

Almost surely, 2^172744070 is an apocalyptic number.

172744070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172744070 is a deficient number, since it is larger than the sum of its proper divisors (151047706).

172744070 is a wasteful number, since it uses less digits than its factorization.

172744070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016.

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 172744070 is about 13143.2138383274. The cubic root of 172744070 is about 556.9305600157.

The spelling of 172744070 in words is "one hundred seventy-two million, seven hundred forty-four thousand, seventy".