1023434 has 16 divisors (see below), whose sum is σ = 1679616. Its totient is φ = 465600.

The previous prime is 1023419. The next prime is 1023461. The reversal of 1023434 is 4343201.

1023434 = 22² + 23² + ... + 145².

It is a Harshad number since it is a multiple of its sum of digits (17).

1023434 is a modest number, since divided by 3434 gives 102 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569 + ... + 1539.

It is an arithmetic number, because the mean of its divisors is an integer number (104976).

2^1023434 is an apocalyptic number.

1023434 is a deficient number, since it is larger than the sum of its proper divisors (656182).

1023434 is a wasteful number, since it uses less digits than its factorization.

1023434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1023434 is about 1011.6491486677. The cubic root of 1023434 is about 100.7751098577.

Adding to 1023434 its reverse (4343201), we get a palindrome (5366635).

The spelling of 1023434 in words is "one million, twenty-three thousand, four hundred thirty-four".