172074 has 32 divisors (see below), whose sum is σ = 418176. Its totient is φ = 46080.

The previous prime is 172069. The next prime is 172079. The reversal of 172074 is 470271.

172074 is nontrivially palindromic in base 4.

It is an interprime number because it is at equal distance from previous prime (172069) and next prime (172079).

It is a super-2 number, since 2×172074² = 59218922952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 172074.

It is not an unprimeable number, because it can be changed into a prime (172079) 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, 594 + ... + 834.

It is an arithmetic number, because the mean of its divisors is an integer number (13068).

2¹⁷²⁰⁷⁴ is an apocalyptic number.

172074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 172074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209088).

172074 is an abundant number, since it is smaller than the sum of its proper divisors (246102).

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

172074 is a wasteful number, since it uses less digits than its factorization.

172074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 172074 is about 414.8180323949. The cubic root of 172074 is about 55.6209520263.

The spelling of 172074 in words is "one hundred seventy-two thousand, seventy-four", and thus it is an iban number.