1401893 has 4 divisors (see below), whose sum is σ = 1439820. Its totient is φ = 1363968.

The previous prime is 1401857. The next prime is 1401937. The reversal of 1401893 is 3981041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 813604 + 588289 = 902^2 + 767^2 .

It is not a de Polignac number, because 1401893 - 2²⁰ = 353317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401823) 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, 18908 + ... + 18981.

It is an arithmetic number, because the mean of its divisors is an integer number (359955).

2^1401893 is an apocalyptic number.

It is an amenable number.

1401893 is a deficient number, since it is larger than the sum of its proper divisors (37927).

1401893 is an equidigital number, since it uses as much as digits as its factorization.

1401893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37926.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1401893 is about 1184.0156248969. The cubic root of 1401893 is about 111.9192924085.

The spelling of 1401893 in words is "one million, four hundred one thousand, eight hundred ninety-three".