172462442 has 4 divisors (see below), whose sum is σ = 258693666. Its totient is φ = 86231220.

The previous prime is 172462429. The next prime is 172462447. The reversal of 172462442 is 244264271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244264271 = 3019 ⋅80909.

It can be written as a sum of positive squares in only one way, i.e., 158030041 + 14432401 = 12571^2 + 3799^2 .

It is a junction number, because it is equal to n+sod(n) for n = 172462399 and 172462408.

It is not an unprimeable number, because it can be changed into a prime (172462447) 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 as a sum of consecutive naturals, namely, 43115609 + ... + 43115612.

Almost surely, 2^172462442 is an apocalyptic number.

172462442 is a deficient number, since it is larger than the sum of its proper divisors (86231224).

172462442 is an equidigital number, since it uses as much as digits as its factorization.

172462442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86231223.

The product of its digits is 21504, while the sum is 32.

The square root of 172462442 is about 13132.4956501040. The cubic root of 172462442 is about 556.6277371671.

The spelling of 172462442 in words is "one hundred seventy-two million, four hundred sixty-two thousand, four hundred forty-two".