1102439 has 8 divisors (see below), whose sum is σ = 1197840. Its totient is φ = 1008576.

The previous prime is 1102429. The next prime is 1102441. The reversal of 1102439 is 9342011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102439 is a prime.

It is an Ulam number.

It is a Duffinian number.

1102439 is a modest number, since divided by 2439 gives 11 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1102439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472 + ... + 2090.

It is an arithmetic number, because the mean of its divisors is an integer number (149730).

2^1102439 is an apocalyptic number.

1102439 is a deficient number, since it is larger than the sum of its proper divisors (95401).

1102439 is a wasteful number, since it uses less digits than its factorization.

1102439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1102439 is about 1049.9709519791. The cubic root of 1102439 is about 103.3042501110.

The spelling of 1102439 in words is "one million, one hundred two thousand, four hundred thirty-nine".