1288434 has 16 divisors (see below), whose sum is σ = 2945088. Its totient is φ = 368112.

The previous prime is 1288429. The next prime is 1288439. The reversal of 1288434 is 4348821.

It is an interprime number because it is at equal distance from previous prime (1288429) and next prime (1288439).

It is not an unprimeable number, because it can be changed into a prime (1288439) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15297 + ... + 15380.

It is an arithmetic number, because the mean of its divisors is an integer number (184068).

2^1288434 is an apocalyptic number.

1288434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1288434 is an abundant number, since it is smaller than the sum of its proper divisors (1656654).

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

1288434 is a wasteful number, since it uses less digits than its factorization.

1288434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30689.

The product of its digits is 6144, while the sum is 30.

The square root of 1288434 is about 1135.0920667505. The cubic root of 1288434 is about 108.8146556995.

It can be divided in two parts, 12 and 88434, that multiplied together give a cube (1061208 = 102³).

The spelling of 1288434 in words is "one million, two hundred eighty-eight thousand, four hundred thirty-four".