1872424 has 16 divisors (see below), whose sum is σ = 3571200. Its totient is φ = 920112.

The previous prime is 1872421. The next prime is 1872427. The reversal of 1872424 is 4242781.

It is an interprime number because it is at equal distance from previous prime (1872421) and next prime (1872427).

It is a d-powerful number, because it can be written as 1 + 8 + 7⁷ + 2³ + 4⁴ + 2⁵ + 4¹⁰ .

It is a junction number, because it is equal to n+sod(n) for n = 1872392 and 1872401.

It is not an unprimeable number, because it can be changed into a prime (1872421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512 + ... + 2455.

It is an arithmetic number, because the mean of its divisors is an integer number (223200).

2^1872424 is an apocalyptic number.

It is an amenable number.

1872424 is a deficient number, since it is larger than the sum of its proper divisors (1698776).

1872424 is a wasteful number, since it uses less digits than its factorization.

1872424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032 (or 4028 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 1872424 is about 1368.3654482630. The cubic root of 1872424 is about 123.2541070596.

The spelling of 1872424 in words is "one million, eight hundred seventy-two thousand, four hundred twenty-four".