344774440 has 32 divisors (see below), whose sum is σ = 788465160. Its totient is φ = 135648000.

The previous prime is 344774389. The next prime is 344774449. The reversal of 344774440 is 44477443.

It can be written as a sum of positive squares in 4 ways, for example, as 281635524 + 63138916 = 16782^2 + 7946^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 344774440.

It is not an unprimeable number, because it can be changed into a prime (344774449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 68211 + ... + 73090.

Almost surely, 2^344774440 is an apocalyptic number.

It is an amenable number.

344774440 is an abundant number, since it is smaller than the sum of its proper divisors (443690720).

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

344774440 is a wasteful number, since it uses less digits than its factorization.

344774440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141373 (or 141369 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 37.

The square root of 344774440 is about 18568.1027571478. The cubic root of 344774440 is about 701.2050264380.

The spelling of 344774440 in words is "three hundred forty-four million, seven hundred seventy-four thousand, four hundred forty".