402645324 has 24 divisors (see below), whose sum is σ = 940749040. Its totient is φ = 134037504.

The previous prime is 402645319. The next prime is 402645349. The reversal of 402645324 is 423546204.

It is a junction number, because it is equal to n+sod(n) for n = 402645291 and 402645300.

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, 12589 + ... + 31044.

Almost surely, 2^402645324 is an apocalyptic number.

It is an amenable number.

402645324 is an abundant number, since it is smaller than the sum of its proper divisors (538103716).

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

402645324 is a wasteful number, since it uses less digits than its factorization.

402645324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44409 (or 44407 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 402645324 is about 20066.0241203882. The cubic root of 402645324 is about 738.4269751084.

The spelling of 402645324 in words is "four hundred two million, six hundred forty-five thousand, three hundred twenty-four".