402351 has 8 divisors (see below), whose sum is σ = 549120. Its totient is φ = 261912.

The previous prime is 402343. The next prime is 402359. The reversal of 402351 is 153204.

402351 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (402343) and next prime (402359).

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

It is not a de Polignac number, because 402351 - 2³ = 402343 is a prime.

402351 is strictly pandigital in base 7.

402351 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 402351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402359) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1431 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (68640).

2⁴⁰²³⁵¹ is an apocalyptic number.

402351 is a deficient number, since it is larger than the sum of its proper divisors (146769).

402351 is a wasteful number, since it uses less digits than its factorization.

402351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 402351 is about 634.3114377023. The cubic root of 402351 is about 73.8247007160.

Adding to 402351 its reverse (153204), we get a palindrome (555555).

The spelling of 402351 in words is "four hundred two thousand, three hundred fifty-one".