402330030 has 32 divisors (see below), whose sum is σ = 1007576064. Its totient is φ = 102623136.

The previous prime is 402330013. The next prime is 402330037. The reversal of 402330030 is 30033204.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 402329991 and 402330009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402330037) 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, 290854 + ... + 292233.

It is an arithmetic number, because the mean of its divisors is an integer number (31486752).

Almost surely, 2^402330030 is an apocalyptic number.

402330030 is an abundant number, since it is smaller than the sum of its proper divisors (605246034).

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

402330030 is a wasteful number, since it uses less digits than its factorization.

402330030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583120.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 402330030 is about 20058.1661674242. The cubic root of 402330030 is about 738.2341814526.

Adding to 402330030 its reverse (30033204), we get a palindrome (432363234).

The spelling of 402330030 in words is "four hundred two million, three hundred thirty thousand, thirty".