402242330 has 16 divisors (see below), whose sum is σ = 827470080. Its totient is φ = 137911632.

The previous prime is 402242327. The next prime is 402242341. The reversal of 402242330 is 33242204.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2873090 + ... + 2873229.

It is an arithmetic number, because the mean of its divisors is an integer number (51716880).

Almost surely, 2^402242330 is an apocalyptic number.

402242330 is an abundant number, since it is smaller than the sum of its proper divisors (425227750).

402242330 is a wasteful number, since it uses less digits than its factorization.

402242330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5746333.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 402242330 is about 20055.9799062524. The cubic root of 402242330 is about 738.1805373979.

Adding to 402242330 its reverse (33242204), we get a palindrome (435484534).

The spelling of 402242330 in words is "four hundred two million, two hundred forty-two thousand, three hundred thirty".