16172340 has 24 divisors (see below), whose sum is σ = 45282720. Its totient is φ = 4312608.

The previous prime is 16172263. The next prime is 16172353. The reversal of 16172340 is 4327161.

It is a self number, because there is not a number n which added to its sum of digits gives 16172340.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 134710 + ... + 134829.

It is an arithmetic number, because the mean of its divisors is an integer number (1886780).

Almost surely, 2^16172340 is an apocalyptic number.

16172340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16172340 is an abundant number, since it is smaller than the sum of its proper divisors (29110380).

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

16172340 is a wasteful number, since it uses less digits than its factorization.

16172340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269551 (or 269549 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 16172340 is about 4021.4848004189. The cubic root of 16172340 is about 252.8857092344.

It can be divided in two parts, 1 and 6172340, that added together give a triangular number (6172341 = T₃₅₁₃).

The spelling of 16172340 in words is "sixteen million, one hundred seventy-two thousand, three hundred forty".