1042637 has 8 divisors (see below), whose sum is σ = 1090200. Its totient is φ = 995904.

The previous prime is 1042633. The next prime is 1042681. The reversal of 1042637 is 7362401.

It can be written as a sum of positive squares in 4 ways, for example, as 292681 + 749956 = 541^2 + 866^2 .

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 1042637 - 2² = 1042633 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042631) by changing a digit.

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, 4439 + ... + 4667.

It is an arithmetic number, because the mean of its divisors is an integer number (136275).

2^1042637 is an apocalyptic number.

It is an amenable number.

1042637 is a deficient number, since it is larger than the sum of its proper divisors (47563).

1042637 is a wasteful number, since it uses less digits than its factorization.

1042637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1042637 is about 1021.0959798178. The cubic root of 1042637 is about 101.4014995622.

The spelling of 1042637 in words is "one million, forty-two thousand, six hundred thirty-seven".