1026431 has 8 divisors (see below), whose sum is σ = 1179264. Its totient is φ = 875160.

The previous prime is 1026427. The next prime is 1026439. The reversal of 1026431 is 1346201.

1026431 = 211² + 212² + ... + 231².

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

It is a cyclic number.

It is not a de Polignac number, because 1026431 - 2² = 1026427 is a prime.

It is a super-2 number, since 2×1026431² = 2107121195522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a zygodrome in base 4 and base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026439) 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, 2096 + ... + 2538.

It is an arithmetic number, because the mean of its divisors is an integer number (147408).

2^1026431 is an apocalyptic number.

1026431 is a deficient number, since it is larger than the sum of its proper divisors (152833).

1026431 is an equidigital number, since it uses as much as digits as its factorization.

1026431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1026431 is about 1013.1293106016. The cubic root of 1026431 is about 100.8733831450.

The spelling of 1026431 in words is "one million, twenty-six thousand, four hundred thirty-one".