172386042 has 32 divisors (see below), whose sum is σ = 350997504. Its totient is φ = 56430000.

The previous prime is 172386041. The next prime is 172386043. The reversal of 172386042 is 240683271.

It is an interprime number because it is at equal distance from previous prime (172386041) and next prime (172386043).

It is a junction number, because it is equal to n+sod(n) for n = 172385994 and 172386012.

It is not an unprimeable number, because it can be changed into a prime (172386041) 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, 229167 + ... + 229917.

It is an arithmetic number, because the mean of its divisors is an integer number (10968672).

Almost surely, 2^172386042 is an apocalyptic number.

172386042 is an abundant number, since it is smaller than the sum of its proper divisors (178611462).

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

172386042 is a wasteful number, since it uses less digits than its factorization.

172386042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 172386042 is about 13129.5865129105. The cubic root of 172386042 is about 556.5455305915.

The spelling of 172386042 in words is "one hundred seventy-two million, three hundred eighty-six thousand, forty-two".