402349 has 4 divisors (see below), whose sum is σ = 415360. Its totient is φ = 389340.

The previous prime is 402343. The next prime is 402359. The reversal of 402349 is 943204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402349 - 2³ = 402341 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6459 + ... + 6520.

It is an arithmetic number, because the mean of its divisors is an integer number (103840).

2⁴⁰²³⁴⁹ is an apocalyptic number.

It is an amenable number.

402349 is a deficient number, since it is larger than the sum of its proper divisors (13011).

402349 is a wasteful number, since it uses less digits than its factorization.

402349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13010.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 402349 is about 634.3098611877. The cubic root of 402349 is about 73.8245783936.

The spelling of 402349 in words is "four hundred two thousand, three hundred forty-nine".