1401909 has 8 divisors (see below), whose sum is σ = 1876992. Its totient is φ = 930720.

The previous prime is 1401857. The next prime is 1401937. The reversal of 1401909 is 9091041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1401909 - 2¹¹ = 1399861 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12 + ... + 1674.

It is an arithmetic number, because the mean of its divisors is an integer number (234624).

2^1401909 is an apocalyptic number.

It is an amenable number.

1401909 is a deficient number, since it is larger than the sum of its proper divisors (475083).

1401909 is a wasteful number, since it uses less digits than its factorization.

1401909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1401909 is about 1184.0223815452. The cubic root of 1401909 is about 111.9197181904.

The spelling of 1401909 in words is "one million, four hundred one thousand, nine hundred nine".