402243015 has 32 divisors (see below), whose sum is σ = 680774400. Its totient is φ = 202245120.

The previous prime is 402243013. The next prime is 402243019. The reversal of 402243015 is 510342204.

402243015 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 402243015 - 2¹ = 402243013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402242982 and 402243000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402243013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56791 + ... + 63479.

It is an arithmetic number, because the mean of its divisors is an integer number (21274200).

Almost surely, 2^402243015 is an apocalyptic number.

402243015 is a deficient number, since it is larger than the sum of its proper divisors (278531385).

402243015 is a wasteful number, since it uses less digits than its factorization.

402243015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6927.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 402243015 is about 20055.9969834461. The cubic root of 402243015 is about 738.1809564267.

Adding to 402243015 its reverse (510342204), we get a palindrome (912585219).

The spelling of 402243015 in words is "four hundred two million, two hundred forty-three thousand, fifteen".