172242876 has 48 divisors (see below), whose sum is σ = 438939648. Its totient is φ = 52248000.

The previous prime is 172242871. The next prime is 172242877. The reversal of 172242876 is 678242271.

172242876 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172242871) 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, 3301 + ... + 18851.

It is an arithmetic number, because the mean of its divisors is an integer number (9144576).

Almost surely, 2^172242876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172242876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219469824).

172242876 is an abundant number, since it is smaller than the sum of its proper divisors (266696772).

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

172242876 is a wasteful number, since it uses less digits than its factorization.

172242876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15642 (or 15640 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 172242876 is about 13124.1333428154. The cubic root of 172242876 is about 556.3914182202.

It can be divided in two parts, 17224 and 2876, that added together give a triangular number (20100 = T₂₀₀).

The spelling of 172242876 in words is "one hundred seventy-two million, two hundred forty-two thousand, eight hundred seventy-six".