1402831 has 4 divisors (see below), whose sum is σ = 1408072. Its totient is φ = 1397592.

The previous prime is 1402829. The next prime is 1402847. The reversal of 1402831 is 1382041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1382041 = 19 ⋅72739.

It is a cyclic number.

It is not a de Polignac number, because 1402831 - 2¹ = 1402829 is a prime.

It is a super-2 number, since 2×1402831² = 3935869629122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1402799 and 1402808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402801) 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, 2196 + ... + 2761.

It is an arithmetic number, because the mean of its divisors is an integer number (352018).

2^1402831 is an apocalyptic number.

1402831 is a deficient number, since it is larger than the sum of its proper divisors (5241).

1402831 is an equidigital number, since it uses as much as digits as its factorization.

1402831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1402831 is about 1184.4116682978. The cubic root of 1402831 is about 111.9442484004.

Adding to 1402831 its reverse (1382041), we get a palindrome (2784872).

The spelling of 1402831 in words is "one million, four hundred two thousand, eight hundred thirty-one".