402730 has 32 divisors (see below), whose sum is σ = 808704. Its totient is φ = 143616.

The previous prime is 402697. The next prime is 402739. The reversal of 402730 is 37204.

It is not an unprimeable number, because it can be changed into a prime (402739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3859 + ... + 3961.

It is an arithmetic number, because the mean of its divisors is an integer number (25272).

2⁴⁰²⁷³⁰ is an apocalyptic number.

402730 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

402730 is a wasteful number, since it uses less digits than its factorization.

402730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 402730 is about 634.6101165283. The cubic root of 402730 is about 73.8478735021.

Adding to 402730 its reverse (37204), we get a palindrome (439934).

The spelling of 402730 in words is "four hundred two thousand, seven hundred thirty".