344421250 has 40 divisors (see below), whose sum is σ = 656311788. Its totient is φ = 135480000.

The previous prime is 344421247. The next prime is 344421269. The reversal of 344421250 is 52124443.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 226893969 + 117527281 = 15063^2 + 10841^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 73992 + ... + 78508.

Almost surely, 2^344421250 is an apocalyptic number.

344421250 is a deficient number, since it is larger than the sum of its proper divisors (311890538).

344421250 is an equidigital number, since it uses as much as digits as its factorization.

344421250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4600 (or 4585 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 344421250 is about 18558.5896554668. The cubic root of 344421250 is about 700.9655044099.

Adding to 344421250 its reverse (52124443), we get a palindrome (396545693).

The spelling of 344421250 in words is "three hundred forty-four million, four hundred twenty-one thousand, two hundred fifty".