402243250 has 32 divisors (see below), whose sum is σ = 757695744. Its totient is φ = 159894000.

The previous prime is 402243241. The next prime is 402243271. The reversal of 402243250 is 52342204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35815 + ... + 45685.

It is an arithmetic number, because the mean of its divisors is an integer number (23677992).

Almost surely, 2^402243250 is an apocalyptic number.

402243250 is a deficient number, since it is larger than the sum of its proper divisors (355452494).

402243250 is a wasteful number, since it uses less digits than its factorization.

402243250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051 (or 10041 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 402243250 is about 20056.0028420421. The cubic root of 402243250 is about 738.1811001810.

Adding to 402243250 its reverse (52342204), we get a palindrome (454585454).

The spelling of 402243250 in words is "four hundred two million, two hundred forty-three thousand, two hundred fifty".