1440172 has 12 divisors (see below), whose sum is σ = 2668680. Its totient is φ = 677696.

The previous prime is 1440119. The next prime is 1440203. The reversal of 1440172 is 2710441.

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 3 ways as a sum of consecutive naturals, for example, 10522 + ... + 10657.

It is an arithmetic number, because the mean of its divisors is an integer number (222390).

2^1440172 is an apocalyptic number.

It is an amenable number.

1440172 is a deficient number, since it is larger than the sum of its proper divisors (1228508).

1440172 is a wasteful number, since it uses less digits than its factorization.

1440172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21200 (or 21198 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1440172 is about 1200.0716645267. The cubic root of 1440172 is about 112.9288193478.

It can be divided in two parts, 14 and 40172, that added together give a triangular number (40186 = T₂₈₃).

The spelling of 1440172 in words is "one million, four hundred forty thousand, one hundred seventy-two".