172050072 has 32 divisors (see below), whose sum is σ = 430801200. Its totient is φ = 57259904.

The previous prime is 172050061. The next prime is 172050079. The reversal of 172050072 is 270050271.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172050079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10954 + ... + 21542.

Almost surely, 2^172050072 is an apocalyptic number.

172050072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172050072 is an abundant number, since it is smaller than the sum of its proper divisors (258751128).

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

172050072 is a wasteful number, since it uses less digits than its factorization.

172050072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11275 (or 11271 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 172050072 is about 13116.7858867941. The cubic root of 172050072 is about 556.1837375599.

The spelling of 172050072 in words is "one hundred seventy-two million, fifty thousand, seventy-two".