402030 has 32 divisors (see below), whose sum is σ = 1072800. Its totient is φ = 107136.

The previous prime is 402029. The next prime is 402037. The reversal of 402030 is 30204.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402037) 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, 475 + ... + 1014.

It is an arithmetic number, because the mean of its divisors is an integer number (33525).

2⁴⁰²⁰³⁰ is an apocalyptic number.

402030 is an abundant number, since it is smaller than the sum of its proper divisors (670770).

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

402030 is a wasteful number, since it uses less digits than its factorization.

402030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505 (or 1499 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 402030 is about 634.0583569357. The cubic root of 402030 is about 73.8050627765.

Adding to 402030 its reverse (30204), we get a palindrome (432234).

The spelling of 402030 in words is "four hundred two thousand, thirty".