424444340 has 24 divisors (see below), whose sum is σ = 894657960. Its totient is φ = 169144448.

The previous prime is 424444337. The next prime is 424444351. The reversal of 424444340 is 43444424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1936 + 424442404 = 44^2 + 20602^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34067 + ... + 44826.

It is an arithmetic number, because the mean of its divisors is an integer number (37277415).

Almost surely, 2^424444340 is an apocalyptic number.

It is an amenable number.

424444340 is an abundant number, since it is smaller than the sum of its proper divisors (470213620).

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

424444340 is a wasteful number, since it uses less digits than its factorization.

424444340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79171 (or 79169 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

The square root of 424444340 is about 20602.0469856760. The cubic root of 424444340 is about 751.5194913011.

Adding to 424444340 its reverse (43444424), we get a palindrome (467888764).

It can be divided in two parts, 4244 and 44340, that added together give a palindrome (48584).

The spelling of 424444340 in words is "four hundred twenty-four million, four hundred forty-four thousand, three hundred forty".