273402 has 32 divisors (see below), whose sum is σ = 624960. Its totient is φ = 88560.

The previous prime is 273367. The next prime is 273433. The reversal of 273402 is 204372.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

273402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3253 + ... + 3335.

It is an arithmetic number, because the mean of its divisors is an integer number (19530).

2²⁷³⁴⁰² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 273402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312480).

273402 is an abundant number, since it is smaller than the sum of its proper divisors (351558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

273402 is a wasteful number, since it uses less digits than its factorization.

273402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 273402 is about 522.8785709895. The cubic root of 273402 is about 64.9033672595.

Adding to 273402 its reverse (204372), we get a palindrome (477774).

It can be divided in two parts, 273 and 402, that multiplied together give a triangular number (109746 = T₄₆₈).

The spelling of 273402 in words is "two hundred seventy-three thousand, four hundred two", and thus it is an iban number.