402441324 has 24 divisors (see below), whose sum is σ = 939389808. Its totient is φ = 134095680.

The previous prime is 402441317. The next prime is 402441331. The reversal of 402441324 is 423144204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (402441317) and next prime (402441331).

It is a junction number, because it is equal to n+sod(n) for n = 402441294 and 402441303.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 39034 + ... + 48254.

It is an arithmetic number, because the mean of its divisors is an integer number (39141242).

Almost surely, 2^402441324 is an apocalyptic number.

It is an amenable number.

402441324 is an abundant number, since it is smaller than the sum of its proper divisors (536948484).

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

402441324 is a wasteful number, since it uses less digits than its factorization.

402441324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12865 (or 12863 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 402441324 is about 20060.9402571265. The cubic root of 402441324 is about 738.3022461873.

Adding to 402441324 its reverse (423144204), we get a palindrome (825585528).

The spelling of 402441324 in words is "four hundred two million, four hundred forty-one thousand, three hundred twenty-four".