172734430 has 32 divisors (see below), whose sum is σ = 340472160. Its totient is φ = 62574720.

The previous prime is 172734403. The next prime is 172734431. The reversal of 172734430 is 34437271.

It is a junction number, because it is equal to n+sod(n) for n = 172734392 and 172734401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172734431) 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, 27636 + ... + 33304.

It is an arithmetic number, because the mean of its divisors is an integer number (10639755).

Almost surely, 2^172734430 is an apocalyptic number.

172734430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172734430 is a deficient number, since it is larger than the sum of its proper divisors (167737730).

172734430 is a wasteful number, since it uses less digits than its factorization.

172734430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5964.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 172734430 is about 13142.8471040334. The cubic root of 172734430 is about 556.9201999679.

The spelling of 172734430 in words is "one hundred seventy-two million, seven hundred thirty-four thousand, four hundred thirty".