1402881 has 4 divisors (see below), whose sum is σ = 1870512. Its totient is φ = 935252.

The previous prime is 1402873. The next prime is 1402883. The reversal of 1402881 is 1882041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1402881 - 2³ = 1402873 is a prime.

It is a super-2 number, since 2×1402881² = 3936150200322, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1402883) by changing a digit.

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, 233811 + ... + 233816.

It is an arithmetic number, because the mean of its divisors is an integer number (467628).

It is a Proth number, since it is equal to 685 ⋅ 2¹¹ + 1 and 685 < 2¹¹.

2^1402881 is an apocalyptic number.

It is an amenable number.

1402881 is a deficient number, since it is larger than the sum of its proper divisors (467631).

1402881 is an equidigital number, since it uses as much as digits as its factorization.

1402881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467630.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1402881 is about 1184.4327756357. The cubic root of 1402881 is about 111.9455783648.

The spelling of 1402881 in words is "one million, four hundred two thousand, eight hundred eighty-one".