1000436 has 6 divisors (see below), whose sum is σ = 1750770. Its totient is φ = 500216.

The previous prime is 1000429. The next prime is 1000453. The reversal of 1000436 is 6340001.

It can be written as a sum of positive squares in only one way, i.e., 940900 + 59536 = 970^2 + 244^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1000436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125051 + ... + 125058.

It is an arithmetic number, because the mean of its divisors is an integer number (291795).

2^1000436 is an apocalyptic number.

It is an amenable number.

1000436 is a deficient number, since it is larger than the sum of its proper divisors (750334).

1000436 is a wasteful number, since it uses less digits than its factorization.

1000436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250113 (or 250111 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1000436 is about 1000.2179762432. The cubic root of 1000436 is about 100.0145312217.

Adding to 1000436 its reverse (6340001), we get a palindrome (7340437).

The spelling of 1000436 in words is "one million, four hundred thirty-six", and thus it is an aban number.