402093 has 12 divisors (see below), whose sum is σ = 594880. Its totient is φ = 261576.

The previous prime is 402091. The next prime is 402107. The reversal of 402093 is 390204.

It is not a de Polignac number, because 402093 - 2¹ = 402091 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 (402091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133 + ... + 906.

2⁴⁰²⁰⁹³ is an apocalyptic number.

402093 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

402093 is a deficient number, since it is larger than the sum of its proper divisors (192787).

402093 is a wasteful number, since it uses less digits than its factorization.

402093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 402093 is about 634.1080349593. The cubic root of 402093 is about 73.8089177758.

Adding to 402093 its reverse (390204), we get a palindrome (792297).

The spelling of 402093 in words is "four hundred two thousand, ninety-three".