1431066 has 32 divisors (see below), whose sum is σ = 3523968. Its totient is φ = 377280.

The previous prime is 1431047. The next prime is 1431071. The reversal of 1431066 is 6601341.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765 + ... + 1856.

It is an arithmetic number, because the mean of its divisors is an integer number (110124).

2^1431066 is an apocalyptic number.

1431066 is an abundant number, since it is smaller than the sum of its proper divisors (2092902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1431066 is a wasteful number, since it uses less digits than its factorization.

1431066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1431066 is about 1196.2717082670. The cubic root of 1431066 is about 112.6903050588.

The spelling of 1431066 in words is "one million, four hundred thirty-one thousand, sixty-six".