1401872 has 20 divisors (see below), whose sum is σ = 2783676. Its totient is φ = 683520.

The previous prime is 1401857. The next prime is 1401937. The reversal of 1401872 is 2781041.

It can be written as a sum of positive squares in 2 ways, for example, as 65536 + 1336336 = 256^2 + 1156^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413 + ... + 1724.

2^1401872 is an apocalyptic number.

It is an amenable number.

1401872 is a deficient number, since it is larger than the sum of its proper divisors (1381804).

1401872 is a wasteful number, since it uses less digits than its factorization.

1401872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1401872 is about 1184.0067567375. The cubic root of 1401872 is about 111.9187335649.

The spelling of 1401872 in words is "one million, four hundred one thousand, eight hundred seventy-two".