1401819 has 16 divisors (see below), whose sum is σ = 1957152. Its totient is φ = 891648.

The previous prime is 1401817. The next prime is 1401821. The reversal of 1401819 is 9181041.

It is an interprime number because it is at equal distance from previous prime (1401817) and next prime (1401821).

It is not a de Polignac number, because 1401819 - 2¹ = 1401817 is a prime.

It is a super-2 number, since 2×1401819² = 3930193017522, which contains 22 as substring.

It is an Ulam number.

1401819 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1401811) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8017 + ... + 8189.

It is an arithmetic number, because the mean of its divisors is an integer number (122322).

2^1401819 is an apocalyptic number.

1401819 is a deficient number, since it is larger than the sum of its proper divisors (555333).

1401819 is a wasteful number, since it uses less digits than its factorization.

1401819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1401819 is about 1183.9843748969. The cubic root of 1401819 is about 111.9173231252.

The spelling of 1401819 in words is "one million, four hundred one thousand, eight hundred nineteen".