402021130 has 32 divisors (see below), whose sum is σ = 828921600. Its totient is φ = 137518080.

The previous prime is 402021121. The next prime is 402021131. The reversal of 402021130 is 31120204.

402021130 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 402021130.

It is not an unprimeable number, because it can be changed into a prime (402021131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25035 + ... + 37825.

It is an arithmetic number, because the mean of its divisors is an integer number (25903800).

Almost surely, 2^402021130 is an apocalyptic number.

402021130 is an abundant number, since it is smaller than the sum of its proper divisors (426900470).

402021130 is a wasteful number, since it uses less digits than its factorization.

402021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13254.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 402021130 is about 20050.4645831462. The cubic root of 402021130 is about 738.0451998471.

Adding to 402021130 its reverse (31120204), we get a palindrome (433141334).

The spelling of 402021130 in words is "four hundred two million, twenty-one thousand, one hundred thirty".